Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:42:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int &p = ptr[nod]; p < G[nod].size(); p++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:121:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | for(j = cid2[e1][e2]; j < p[e1][e2].size() && j < cid2[e1][e2] + edges[x].f; j++) poz[i].push_back(p[e1][e2][j]); | ~~^~~~~~~~~~~~~~~~~~ main.cpp:120:21: warning: unused variable 'flow' [-Wunused-variable] 120 | int flow = edges[x].f; | ^~~~ main.cpp:65:24: warning: unused variable 'sz' [-Wunused-variable] 65 | int n,m,i,j,id = 0,sz = 0; | ^~