/in/foo.cc: In function 'int main()':
/in/foo.cc:23:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d%d%d",&m,&n,&k,&l,&d);
                                       ^
/in/foo.cc:26:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d",&x,&y,&p,&q);
                                      ^
/in/foo.cc:48:20: warning: ignoring return value of 'int system(const char*)', declared with attribute warn_unused_result [-Wunused-result]
     system("pause");
                    ^