View Compilation Error

0_0_14824417_27064.cpp: In function 'int main()':
0_0_14824417_27064.cpp:77:7: error: redeclaration of 'int ans'
   int ans = 0;
       ^
0_0_14824417_27064.cpp:62:7: note: 'int ans' previously declared here
   int ans = 0;
       ^