Compilare: main.cpp: In function 'bool bfs(int, int)': main.cpp:32:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i = 0; i<v[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'long long int dfs(int, int, long long int)': main.cpp:50:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(int &i = ptr[nod]; i<v[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:86:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 86 | while(pushed = dfs(1,n,1e18)) | ~~~~~~~^~~~~~~~~~~~~~~