Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:37:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<vec[k].size();i++) ^ user.cpp: In function ‘void dfsT(int)’: user.cpp:49:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<vecT[k].size();i++) ^ user.cpp: In function ‘void Rezolvare()’: user.cpp:74:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<c[i].size();j++) ^ user.cpp: In function ‘void Citire()’: user.cpp:21:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&N,&M); ^ user.cpp:25:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&x,&y); ^