small modifications

constraint_solver/constraint_solver.h

@@ -325,7 +325,7 @@ class Solver {
     ASSIGN_MIN_VALUE,
     ASSIGN_MAX_VALUE,
     ASSIGN_RANDOM_VALUE,
-    ASSIGN_CENTER_VALUE
+    ASSIGN_CENTER_VALUE,
   };
 
   enum EvaluatorStrategy {

examples/nqueens.cc

@@ -60,6 +60,7 @@ class NQueenSymmetry : public SymmetryBreaker {
     }
   }
   virtual ~NQueenSymmetry() {}
+
  protected:
   int Index(IntVar* const var) const {
     return FindWithDefault(indices_, var, -1);
@@ -70,7 +71,7 @@ class NQueenSymmetry : public SymmetryBreaker {
     return vars_[index];
   }
   int size() const { return size_; }
-  int symmetric(int index) const { return size() - 1 - index; }
+  int symmetric(int index) const { return size_ - 1 - index; }
   Solver* const solver() const { return solver_; }
 
  private: