View Compilation Error

0_0_36861313_1635.cpp: In function 'int main()':
0_0_36861313_1635.cpp:36:17: error: 'ans_time' was not declared in this scope
         cout << ans_time << endl;
                 ^
0_0_36861313_1635.cpp: At global scope:
0_0_36861313_1635.cpp:38:1: error: expected declaration before '}' token
 }
 ^