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quick review #6

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3 changes: 3 additions & 0 deletions lesson5/solver_by_2opt.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,9 @@ class TSP {
double CalcScoreFromTour(const std::vector<int>& tour) {
double result = 0;
for (int i = 1; i < N_ + 1; i++) {
// ALEXNOTE: this is called in the inner loop of OptimizeBy20pt.
// so you can probably gain much efficiency by caching the score
// data for each node, or even better if you cache for the entire tour.
result += dist_[tour[i - 1]][tour[i]];
}
return result;
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