View Compilation Error

0_0_38144259_26482.c: In function 'main':
0_0_38144259_26482.c:22:6: error: expected expression before '/' token
      //printf("%d",o);
      ^
0_0_38144259_26482.c:26:2: error: expected expression before '/' token
  //printf("%d",o);
  ^