Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:35:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graph[node].size();i++) ^ user.cpp: In function ‘int Solve(int)’: user.cpp:65:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<Graph[Comp[c][i]].size();k++) ^ user.cpp: In function ‘int main()’: user.cpp:94:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&T); ^ user.cpp:105:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d %d",&N,&M); ^ user.cpp:108:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d %d",&X,&Y); ^