Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:22:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i=0;i<gr[p].size();i++){ | ~^~~~~~~~~~~~~ main.cpp: In function 'void dijkstra(long long int)': main.cpp:36:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=0;i<gr[t].size();i++){ | ~^~~~~~~~~~~~~