Compilare: main.cpp: In function 'int bfs(int, int)': main.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i=0; i<v[s].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'int dfs(int, int, int)': main.cpp:54:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int i=poz[s]; i<v[s].size(); i++) | ~^~~~~~~~~~~~