Compilare: main.cpp: In function 'void pct_a(std::vector<std::vector<std::pair<int, int> > >&, std::vector<int>&)': main.cpp:20:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=0;i<graf[nod_curent].size();i++){ | ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void pct_b(std::vector<std::pair<std::pair<int, int>, int> >, std::vector<int>&)': main.cpp:43:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int i=0;i<muchii.size();i++){ | ~^~~~~~~~~~~~~~