Compilare: user.cpp: In function ‘int main()’: user.cpp:40:20: warning: unused variable ‘aux’ [-Wunused-variable] int i,j,x; muc aux; ^ user.cpp:41:28: 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:44:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&v[i].x,&v[i].y,&v[i].c); ^