Compilare: user.cpp: In function ‘void dfs(int, int, int, int)’: user.cpp:112:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<Gprim[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:44:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^ user.cpp: In function ‘void read()’: user.cpp:53:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&n,&m,&k); ^ user.cpp:56:73: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&muchii[i].x,&muchii[i].y,&muchii[i].cost); ^