Compilare: main.cpp: In function 'void Dijkstra(int, int)': main.cpp:45:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Graf, std::allocator<Graf> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 0; i < nou[x].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void Dijkstra1(int, int)': main.cpp:71:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Graf, std::allocator<Graf> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 0; i < v[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'void DFS(int)': main.cpp:85:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Graf, std::allocator<Graf> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int i = 0; i < v[x].size(); i++) | ~~^~~~~~~~~~~~~