View Compilation Error

0_0_13979448_27445.cpp: In function 'int main()':
0_0_13979448_27445.cpp:23:19: error: 's' was not declared in this scope
     printf("%d\n",s);
                   ^
0_0_13979448_27445.cpp: At global scope:
0_0_13979448_27445.cpp:25:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_13979448_27445.cpp:26:1: error: expected declaration before '}' token
 }
 ^