Compilare: main.cpp: In function 'int main()': main.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for( int i = 0; i < vecini[u].size(); i++ ){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp:76:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for( int j = 0; j < muchii.size(); j++ ){ | ~~^~~~~~~~~~~~~~~ main.cpp:77:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 77 | if( muchii[j].first == drum[i] && muchii[j].second == drum[i-1] || muchii[j].first == drum[i-1] && muchii[j].second == drum[i] ){ main.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for( int i = 0; i < cost_muchii.size(); i++ ){ | ~~^~~~~~~~~~~~~~~~~~~~