/in/foo.cc: In function 'int main()':
/in/foo.cc:8:20: error: 'p' was not declared in this scope
    8 |                 if(p<=10){
      |                    ^
/in/foo.cc:12:10: error: 'else' without a previous 'if'
   12 |         }else{
      |          ^~~~
/in/foo.cc:13:26: error: 'endl\U0000ff1b' was not declared in this scope
   13 |                 cout<<P<<endl；
      |                          ^~~~~~