cleanup

ortools/linear_solver/samples/AssignmentGroupsMip.cs

@@ -65,7 +65,7 @@ public class AssignmentGroupsMip
         };
         // [END allowed_groups]
 
-        // Model.
+        // Solver.
         // [START solver]
         Solver solver = Solver.CreateSolver("SCIP");
         // [END solver]

ortools/linear_solver/samples/AssignmentMip.cs

@@ -30,10 +30,10 @@ public class AssignmentMip
         int numTasks = costs.GetLength(1);
         // [END data_model]
 
-        // Model.
-        // [START model]
+        // Solver.
+        // [START solver]
         Solver solver = Solver.CreateSolver("SCIP");
-        // [END model]
+        // [END solver]
 
         // Variables.
         // [START variables]

ortools/linear_solver/samples/AssignmentTaskSizesMip.cs

@@ -43,10 +43,10 @@ public class AssignmentTaskSizesMip
         int totalSizeMax = 15;
         // [END data]
 
-        // Model.
-        // [START model]
+        // Solver.
+        // [START solver]
         Solver solver = Solver.CreateSolver("SCIP");
-        // [END model]
+        // [END solver]
 
         // Variables.
         // [START variables]

ortools/linear_solver/samples/AssignmentTeamsMip.cs

@@ -45,10 +45,10 @@ public class AssignmentTeamsMip
         int teamMax = 2;
         // [END data]
 
-        // Model.
-        // [START model]
+        // Solver.
+        // [START solver]
         Solver solver = Solver.CreateSolver("SCIP");
-        // [END model]
+        // [END solver]
 
         // Variables.
         // [START variables]

ortools/linear_solver/samples/assignment_groups_mip.py

@@ -66,7 +66,7 @@ def main():
     ]
     # [END allowed_groups]
 
-    # Solver
+    # Solver.
     # [START solver]
     # Create the mip solver with the SCIP backend.
     solver = pywraplp.Solver.CreateSolver('SCIP')