foo.cc:1:1: error: 'include' does not name a type
    1 | include<bits/stdc++.h>
      | ^~~~~~~
foo.cc: In function 'bool cp(stu, stu)':
foo.cc:14:35: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   14 |  else return x.yu>y.yu||x.yu==y.yu&&x.xh<y.xh;
      |                         ~~~~~~~~~~^~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:19:2: error: 'cin' was not declared in this scope
   19 |  cin>>n;
      |  ^~~
foo.cc:25:2: error: 'sort' was not declared in this scope; did you mean 'short'?
   25 |  sort(a+1,a+n+1,cp);
      |  ^~~~
      |  short
foo.cc:27:3: error: 'cout' was not declared in this scope
   27 |   cout<<a[i].xh<<' '<<a[i].cj()<<' '<<endl;
      |   ^~~~
foo.cc:27:39: error: 'endl' was not declared in this scope
   27 |   cout<<a[i].xh<<' '<<a[i].cj()<<' '<<endl;
      |                                       ^~~~

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