Compilare: user.cpp: In function ‘int main()’: user.cpp:11:23: warning: unused variable ‘maxi’ [-Wunused-variable] int w,h,n,i,j,x,d,maxi=0; ^ user.cpp:12:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&w,&h,&n); ^ user.cpp:26:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^