Compilare: user.cpp: In function ‘int main()’: user.cpp:48:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[nod].size(); i++) ^ user.cpp:20:36: warning: unused variable ‘k’ [-Wunused-variable] int n, m, i, x, y, nod, sursa, k = 1, cc = 0; ^ user.cpp:25:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:30:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^