Compilare: main.cpp: In function 'int main()': main.cpp:100:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for (int i = start[nod]; i < graf[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:122:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | for (int i = 0; i < sol.size()-1; i++) | ~~^~~~~~~~~~~~~~ main.cpp:130:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 130 | for (int i = 0; i < piese.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:142:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 142 | for (int i = 0; i < afis.size(); i++) | ~~^~~~~~~~~~~~~