View Compilation Error

0_0_24016140_26902.cpp: In function 'int main()':
0_0_24016140_26902.cpp:133:16: error: 'ans' was not declared in this scope
             if(ans == INF) printf("-1\n");
                ^
0_0_24016140_26902.cpp: At global scope:
0_0_24016140_26902.cpp:137:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_24016140_26902.cpp:138:1: error: expected declaration before '}' token
 }
 ^