Compilare: user.cpp: In function ‘int main()’: user.cpp:65:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(rez+pas<V[pos].size()&&ok(V[pos][rez+pas],p)) ^ user.cpp:34:27: 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:35:60: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=N;i++){fscanf(f,"%d %d",&P[i].x,&P[i].y);t[i]=P[i].x;} ^ user.cpp:57:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&p.x,&p.y); ^