Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14:16: error: ‘sort’ was not declared in this scope sort(v,v+n,cmp); ^ user.cpp:12:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:13:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=0;i<n;i++)fscanf(f,"%d%d",&v[i].x,&v[i].y); ^