View Compilation Error

0_0_37026037_9643.cpp: In function 'int main()':
0_0_37026037_9643.cpp:79:12: error: 'f' was not declared in this scope
         if(f) printf("Case #%d: Yes\n",kase++);
            ^
0_0_37026037_9643.cpp: At global scope:
0_0_37026037_9643.cpp:82:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_37026037_9643.cpp:83:1: error: expected declaration before '}' token
 }
 ^