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< a href = "dijkstra_8cc.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
< div class = "line" > < a id = "l00002" name = "l00002" > < / a > < span class = "lineno" > 2< / span > < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a id = "l00003" name = "l00003" > < / a > < span class = "lineno" > 3< / span > < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a id = "l00004" name = "l00004" > < / a > < span class = "lineno" > 4< / span > < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00006" name = "l00006" > < / a > < span class = "lineno" > 6< / span > < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00008" name = "l00008" > < / a > < span class = "lineno" > 8< / span > < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a id = "l00009" name = "l00009" > < / a > < span class = "lineno" > 9< / span > < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a id = "l00010" name = "l00010" > < / a > < span class = "lineno" > 10< / span > < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a id = "l00012" name = "l00012" > < / a > < span class = "lineno" > 12< / span > < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a id = "l00013" name = "l00013" > < / a > < span class = "lineno" > 13< / span > < / div >
< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "preprocessor" > #include < cstdint> < / span > < / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < span class = "preprocessor" > #include < functional> < / span > < / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "preprocessor" > #include < memory> < / span > < / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "preprocessor" > #include < set> < / span > < / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > < span class = "preprocessor" > #include " absl/container/flat_hash_set.h" < / span > < / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "preprocessor" > #include " < a class = "code" href = "adjustable__priority__queue_8h.html" > ortools/base/adjustable_priority_queue.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > < span class = "preprocessor" > #include " < a class = "code" href = "integral__types_8h.html" > ortools/base/integral_types.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < span class = "preprocessor" > #include " < a class = "code" href = "shortestpaths_8h.html" > ortools/graph/shortestpaths.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > < / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "comment" > // Priority queue element< / span > < / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "keyword" > class < / span > Element {< / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "keywordtype" > bool< / span > operator< (< span class = "keyword" > const< / span > Element& other)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > < span class = "keywordflow" > return< / span > distance_ != other.distance_ ? distance_ > other.distance_< / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > : node_ > other.node_;< / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > }< / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > < span class = "keywordtype" > void< / span > SetHeapIndex(< span class = "keywordtype" > int< / span > h) { heap_index_ = h; }< / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > < span class = "keywordtype" > int< / span > GetHeapIndex()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > heap_index_; }< / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > < span class = "keywordtype" > void< / span > set_distance(int64_t < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > ) { distance_ = < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > ; }< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > int64_t < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > ()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > distance_; }< / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > < span class = "keywordtype" > void< / span > set_node(< span class = "keywordtype" > int< / span > node) { node_ = node; }< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < span class = "keywordtype" > int< / span > node()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > node_; }< / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > int64_t distance_ = 0;< / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > < span class = "keywordtype" > int< / span > heap_index_ = -1;< / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "keywordtype" > int< / span > node_ = -1;< / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > };< / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > < / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > S> < / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1_dijkstra_s_p.html" > 51< / a > < / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "classoperations__research_1_1_dijkstra_s_p.html" > DijkstraSP< / a > {< / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1_dijkstra_s_p.html#ad437d1ef7c1ace92a552ef6de9cae7f1" > 53< / a > < / span > < span class = "keyword" > static< / span > < span class = "keyword" > constexpr< / span > int64_t < a class = "code hl_variable" href = "classoperations__research_1_1_dijkstra_s_p.html#ad437d1ef7c1ace92a552ef6de9cae7f1" > kInfinity< / a > = < a class = "code hl_variable" href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > std::numeric_limits< int64_t> ::max< / a > () / 2;< / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1_dijkstra_s_p.html#a9f2ce80cc694cce5fab43a7d24e36a11" > 55< / a > < / span > < a class = "code hl_function" href = "classoperations__research_1_1_dijkstra_s_p.html#a9f2ce80cc694cce5fab43a7d24e36a11" > DijkstraSP< / a > (< span class = "keywordtype" > int< / span > node_count, < span class = "keywordtype" > int< / span > start_node,< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > std::function< int64_t(< span class = "keywordtype" > int< / span > , < span class = "keywordtype" > int< / span > )> graph,< / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > int64_t disconnected_distance)< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > : node_count_(node_count),< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > start_node_(start_node),< / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > graph_(< a class = "code hl_namespace" href = "namespacestd.html" > std< / a > ::move(graph)),< / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > disconnected_distance_(disconnected_distance),< / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > predecessor_(new int[node_count]),< / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > elements_(node_count) {}< / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1_dijkstra_s_p.html#a48b9f284876a7bfaa4d6841cac33554e" > 65< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1_dijkstra_s_p.html#a48b9f284876a7bfaa4d6841cac33554e" > ShortestPath< / a > (< span class = "keywordtype" > int< / span > end_node, std::vector< int> * < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > ) {< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > Initialize();< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > < span class = "keywordtype" > bool< / span > found = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > < span class = "keywordflow" > while< / span > (!frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > int64_t < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > ;< / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > < span class = "keywordtype" > int< / span > node = SelectClosestNode(& < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > );< / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > == < a class = "code hl_variable" href = "classoperations__research_1_1_dijkstra_s_p.html#ad437d1ef7c1ace92a552ef6de9cae7f1" > kInfinity< / a > ) {< / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > found = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (node == end_node) {< / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > found = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > }< / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > Update(node);< / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > }< / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > < span class = "keywordflow" > if< / span > (found) {< / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > 81< / span > FindPath(end_node, < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > );< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > }< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < span class = "keywordflow" > return< / span > found;< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > }< / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > < / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > < span class = "keywordtype" > void< / span > Initialize() {< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < node_count_; i++) {< / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > elements_[i].set_node(i);< / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > < span class = "keywordflow" > if< / span > (i == start_node_) {< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > predecessor_[i] = -1;< / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > elements_[i].set_distance(0);< / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#ac312fa979ea8afd5deabd6b581b3bb1f" > Add< / a > (& elements_[i]);< / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > elements_[i].set_distance(< a class = "code hl_variable" href = "classoperations__research_1_1_dijkstra_s_p.html#ad437d1ef7c1ace92a552ef6de9cae7f1" > kInfinity< / a > );< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > predecessor_[i] = start_node_;< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > not_visited_.insert(i);< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > }< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > }< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > }< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > < / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > < span class = "keywordtype" > int< / span > SelectClosestNode(int64_t* < a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > ) {< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > node = frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#a503e1bfef34fc7acf03340ddd74b5872" > Top< / a > ()-> node();< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > *< a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > = frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#a503e1bfef34fc7acf03340ddd74b5872" > Top< / a > ()-> distance();< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#a701a584ce72cccbcce9cb0656b6c898b" > Pop< / a > ();< / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > not_visited_.erase(node);< / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > added_to_the_frontier_.erase(node);< / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > < span class = "keywordflow" > return< / span > node;< / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > }< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < span class = "keywordtype" > void< / span > Update(< span class = "keywordtype" > int< / span > node) {< / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & other_node : not_visited_) {< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > < span class = "keyword" > const< / span > int64_t graph_node_i = graph_(node, other_node);< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < span class = "keywordflow" > if< / span > (graph_node_i != disconnected_distance_) {< / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > < span class = "keywordflow" > if< / span > (added_to_the_frontier_.find(other_node) ==< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > added_to_the_frontier_.end()) {< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#ac312fa979ea8afd5deabd6b581b3bb1f" > Add< / a > (& elements_[other_node]);< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > added_to_the_frontier_.insert(other_node);< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > }< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > < span class = "keyword" > const< / span > int64_t other_distance =< / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > elements_[node].distance() + graph_node_i;< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > < span class = "keywordflow" > if< / span > (elements_[other_node].< a class = "code hl_variable" href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > () > other_distance) {< / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > 123< / span > elements_[other_node].set_distance(other_distance);< / div >
< div class = "line" > < a id = "l00124" name = "l00124" > < / a > < span class = "lineno" > 124< / span > frontier_.< a class = "code hl_function" href = "class_adjustable_priority_queue.html#a506169056c5f470fabdf77aa1934a5a3" > NoteChangedPriority< / a > (& elements_[other_node]);< / div >
< div class = "line" > < a id = "l00125" name = "l00125" > < / a > < span class = "lineno" > 125< / span > predecessor_[other_node] = node;< / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > }< / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > }< / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > }< / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > }< / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > < / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > < span class = "keywordtype" > void< / span > FindPath(< span class = "keywordtype" > int< / span > dest, std::vector< int> * < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > ) {< / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > < span class = "keywordtype" > int< / span > j = dest;< / div >
< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > -> push_back(j);< / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > < span class = "keywordflow" > while< / span > (predecessor_[j] != -1) {< / div >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > 135< / span > < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > -> push_back(predecessor_[j]);< / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > j = predecessor_[j];< / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > }< / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > }< / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > < / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > node_count_;< / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > start_node_;< / div >
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > std::function< int64_t(< span class = "keywordtype" > int< / span > , < span class = "keywordtype" > int< / span > )> graph_;< / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < span class = "keyword" > const< / span > int64_t disconnected_distance_;< / div >
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > std::unique_ptr< int[]> predecessor_;< / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > < a class = "code hl_class" href = "class_adjustable_priority_queue.html" > AdjustablePriorityQueue< Element> < / a > frontier_;< / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > std::vector< Element> elements_;< / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > 147< / span > S not_visited_;< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > S added_to_the_frontier_;< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > };< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > < / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceoperations__research.html#a18d2a8338b0d0e7ec3852cc0b58037ed" > 151< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "namespaceoperations__research.html#a18d2a8338b0d0e7ec3852cc0b58037ed" > DijkstraShortestPath< / a > (< span class = "keywordtype" > int< / span > node_count, < span class = "keywordtype" > int< / span > start_node, < span class = "keywordtype" > int< / span > end_node,< / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > std::function< int64_t(< span class = "keywordtype" > int< / span > , < span class = "keywordtype" > int< / span > )> graph,< / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > int64_t disconnected_distance,< / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > std::vector< int> * < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > ) {< / div >
< div class = "line" > < a id = "l00155" name = "l00155" > < / a > < span class = "lineno" > 155< / span > < a class = "code hl_class" href = "classoperations__research_1_1_dijkstra_s_p.html" > DijkstraSP< absl::flat_hash_set< int> < / a > > bf(< / div >
< div class = "line" > < a id = "l00156" name = "l00156" > < / a > < span class = "lineno" > 156< / span > node_count, start_node, std::move(graph), disconnected_distance);< / div >
< div class = "line" > < a id = "l00157" name = "l00157" > < / a > < span class = "lineno" > 157< / span > < span class = "keywordflow" > return< / span > bf.< a class = "code hl_function" href = "classoperations__research_1_1_dijkstra_s_p.html#a48b9f284876a7bfaa4d6841cac33554e" > ShortestPath< / a > (end_node, < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > );< / div >
< div class = "line" > < a id = "l00158" name = "l00158" > < / a > < span class = "lineno" > 158< / span > }< / div >
< div class = "line" > < a id = "l00159" name = "l00159" > < / a > < span class = "lineno" > 159< / span > < / div >
< div class = "line" > < a id = "l00160" name = "l00160" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceoperations__research.html#a9e9e916a0fd3a846388cc235c42d99fb" > 160< / a > < / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "namespaceoperations__research.html#a9e9e916a0fd3a846388cc235c42d99fb" > StableDijkstraShortestPath< / a > (< span class = "keywordtype" > int< / span > node_count, < span class = "keywordtype" > int< / span > start_node, < span class = "keywordtype" > int< / span > end_node,< / div >
< div class = "line" > < a id = "l00161" name = "l00161" > < / a > < span class = "lineno" > 161< / span > std::function< int64_t(< span class = "keywordtype" > int< / span > , < span class = "keywordtype" > int< / span > )> graph,< / div >
< div class = "line" > < a id = "l00162" name = "l00162" > < / a > < span class = "lineno" > 162< / span > int64_t disconnected_distance,< / div >
< div class = "line" > < a id = "l00163" name = "l00163" > < / a > < span class = "lineno" > 163< / span > std::vector< int> * < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > ) {< / div >
< div class = "line" > < a id = "l00164" name = "l00164" > < / a > < span class = "lineno" > 164< / span > < a class = "code hl_class" href = "classoperations__research_1_1_dijkstra_s_p.html" > DijkstraSP< std::set< int> < / a > > bf(node_count, start_node, std::move(graph),< / div >
< div class = "line" > < a id = "l00165" name = "l00165" > < / a > < span class = "lineno" > 165< / span > disconnected_distance);< / div >
< div class = "line" > < a id = "l00166" name = "l00166" > < / a > < span class = "lineno" > 166< / span > < span class = "keywordflow" > return< / span > bf.< a class = "code hl_function" href = "classoperations__research_1_1_dijkstra_s_p.html#a48b9f284876a7bfaa4d6841cac33554e" > ShortestPath< / a > (end_node, < a class = "code hl_variable" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > );< / div >
< div class = "line" > < a id = "l00167" name = "l00167" > < / a > < span class = "lineno" > 167< / span > }< / div >
< div class = "line" > < a id = "l00168" name = "l00168" > < / a > < span class = "lineno" > 168< / span > } < span class = "comment" > // namespace operations_research< / span > < / div >
< div class = "ttc" id = "aadjustable__priority__queue_8h_html" > < div class = "ttname" > < a href = "adjustable__priority__queue_8h.html" > adjustable_priority_queue.h< / a > < / div > < / div >
< div class = "ttc" id = "aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > max< / a > < / div > < div class = "ttdeci" > int64_t max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00140" > alldiff_cst.cc:140< / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html" > AdjustablePriorityQueue< Element > < / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html_a503e1bfef34fc7acf03340ddd74b5872" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html#a503e1bfef34fc7acf03340ddd74b5872" > AdjustablePriorityQueue::Top< / a > < / div > < div class = "ttdeci" > T * Top()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "adjustable__priority__queue_8h_source.html#l00087" > adjustable_priority_queue.h:87< / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html_a506169056c5f470fabdf77aa1934a5a3" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html#a506169056c5f470fabdf77aa1934a5a3" > AdjustablePriorityQueue::NoteChangedPriority< / a > < / div > < div class = "ttdeci" > void NoteChangedPriority(T *val)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "adjustable__priority__queue_8h_source.html#l00074" > adjustable_priority_queue.h:74< / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html_a701a584ce72cccbcce9cb0656b6c898b" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html#a701a584ce72cccbcce9cb0656b6c898b" > AdjustablePriorityQueue::Pop< / a > < / div > < div class = "ttdeci" > void Pop()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "adjustable__priority__queue_8h_source.html#l00117" > adjustable_priority_queue.h:117< / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html#a8e12342fc420701fbffd97025421575a" > AdjustablePriorityQueue::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "adjustable__priority__queue_8h_source.html#l00127" > adjustable_priority_queue.h:127< / a > < / div > < / div >
< div class = "ttc" id = "aclass_adjustable_priority_queue_html_ac312fa979ea8afd5deabd6b581b3bb1f" > < div class = "ttname" > < a href = "class_adjustable_priority_queue.html#ac312fa979ea8afd5deabd6b581b3bb1f" > AdjustablePriorityQueue::Add< / a > < / div > < div class = "ttdeci" > void Add(T *val)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "adjustable__priority__queue_8h_source.html#l00049" > adjustable_priority_queue.h:49< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_dijkstra_s_p_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_dijkstra_s_p.html" > operations_research::DijkstraSP< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00051" > dijkstra.cc:51< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_dijkstra_s_p_html_a48b9f284876a7bfaa4d6841cac33554e" > < div class = "ttname" > < a href = "classoperations__research_1_1_dijkstra_s_p.html#a48b9f284876a7bfaa4d6841cac33554e" > operations_research::DijkstraSP::ShortestPath< / a > < / div > < div class = "ttdeci" > bool ShortestPath(int end_node, std::vector< int > *nodes)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00065" > dijkstra.cc:65< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_dijkstra_s_p_html_a9f2ce80cc694cce5fab43a7d24e36a11" > < div class = "ttname" > < a href = "classoperations__research_1_1_dijkstra_s_p.html#a9f2ce80cc694cce5fab43a7d24e36a11" > operations_research::DijkstraSP::DijkstraSP< / a > < / div > < div class = "ttdeci" > DijkstraSP(int node_count, int start_node, std::function< int64_t(int, int)> graph, int64_t disconnected_distance)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00055" > dijkstra.cc:55< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_dijkstra_s_p_html_ad437d1ef7c1ace92a552ef6de9cae7f1" > < div class = "ttname" > < a href = "classoperations__research_1_1_dijkstra_s_p.html#ad437d1ef7c1ace92a552ef6de9cae7f1" > operations_research::DijkstraSP::kInfinity< / a > < / div > < div class = "ttdeci" > static constexpr int64_t kInfinity< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00053" > dijkstra.cc:53< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html" > < div class = "ttname" > < a href = "integral__types_8h.html" > integral_types.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > Collection of objects used to extend the Constraint Solver library.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_a18d2a8338b0d0e7ec3852cc0b58037ed" > < div class = "ttname" > < a href = "namespaceoperations__research.html#a18d2a8338b0d0e7ec3852cc0b58037ed" > operations_research::DijkstraShortestPath< / a > < / div > < div class = "ttdeci" > bool DijkstraShortestPath(int node_count, int start_node, int end_node, std::function< int64_t(int, int)> graph, int64_t disconnected_distance, std::vector< int > *nodes)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00151" > dijkstra.cc:151< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_a9e9e916a0fd3a846388cc235c42d99fb" > < div class = "ttname" > < a href = "namespaceoperations__research.html#a9e9e916a0fd3a846388cc235c42d99fb" > operations_research::StableDijkstraShortestPath< / a > < / div > < div class = "ttdeci" > bool StableDijkstraShortestPath(int node_count, int start_node, int end_node, std::function< int64_t(int, int)> graph, int64_t disconnected_distance, std::vector< int > *nodes)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dijkstra_8cc_source.html#l00160" > dijkstra.cc:160< / a > < / div > < / div >
< div class = "ttc" id = "anamespacestd_html" > < div class = "ttname" > < a href = "namespacestd.html" > std< / a > < / div > < div class = "ttdoc" > STL namespace.< / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "arouting__search_8cc_html_a6b7983ccd32c86cbbc3d4d9cda4cac17" > < div class = "ttname" > < a href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > < / div > < div class = "ttdeci" > int nodes< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__search_8cc_source.html#l03997" > routing_search.cc:3997< / a > < / div > < / div >
< div class = "ttc" id = "arouting__search_8cc_html_a79b8e036dca6911e3295a47d99f21f43" > < div class = "ttname" > < a href = "routing__search_8cc.html#a79b8e036dca6911e3295a47d99f21f43" > distance< / a > < / div > < div class = "ttdeci" > double distance< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__search_8cc_source.html#l03741" > routing_search.cc:3741< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
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2021-01-26 11:28:50 +01:00
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