Compilare: user.cpp: In function ‘void dfs(int, std::stack<int>*, std::vector<int>*, std::bitset<50010u>*)’: user.cpp:29:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<(g[nod]).size();i++) ^ user.cpp: In function ‘std::vector<int>* citire(int*, int*)’: user.cpp:13:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",n,m); ^ user.cpp:19:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&a,&b); ^