Compilare: main.cpp: In function 'void DFS(int)': main.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i = 0; i < G[nod].size(); ++ i){ | ~~^~~~~~~~~~~~~~~ main.cpp:28:9: warning: unused variable 'ans' [-Wunused-variable] 28 | int ans = d[nod]; | ^~~ main.cpp: In function 'void dijkstra()': main.cpp:53:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i = 0; i < G[nod].size(); ++ i){ | ~~^~~~~~~~~~~~~~~