foo.cc: In function ‘int main()’:
foo.cc:6:15: error: expected ‘;’ before ‘if’
    6 |         cin>>n
      |               ^
      |               ;
    7 |         if(int(n)%2)
      |         ~~     
foo.cc:9:9: error: ‘else’ without a previous ‘if’
    9 |         else
      |         ^~~~