Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:41:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int &p = ptr[nod]; p < G[nod].size(); p++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:24: warning: unused variable 'sz' [-Wunused-variable] 64 | int n,m,i,j,id = 0,sz = 0; | ^~