View Compilation Error

0_0_39568563_839.cpp: In function 'int main()':
0_0_39568563_839.cpp:64:25: error: 'res' was not declared in this scope
   64 |         printf("%lld\n",res);
      |                         ^~~
0_0_39568563_839.cpp: At global scope:
0_0_39568563_839.cpp:66:9: error: expected unqualified-id before 'return'
   66 |         return 0;
      |         ^~~~~~
0_0_39568563_839.cpp:67:1: error: expected declaration before '}' token
   67 | }
      | ^