/in/foo.cc: In function 'int main()':
/in/foo.cc:12:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&T,&K);
                     ^
/in/foo.cc:28:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  while (T--) {scanf("%d%d",&n,&m);printf("%d\n",ans[n][min(n,m)]);}
                                  ^