View Compilation Error

0_0_26353079_10997.cpp: In function 'int main()':
0_0_26353079_10997.cpp:10:7: error: expected primary-expression before ';' token
   n- -;
       ^
0_0_26353079_10997.cpp:15:2: error: 'return0' was not declared in this scope
  return0;
  ^