View Compilation Error

0_0_17864798_10806.cpp: In function 'int main()':
0_0_17864798_10806.cpp:44:29: error: 'ans' was not declared in this scope
             if(sum[find(a)]>ans)
                             ^
0_0_17864798_10806.cpp:47:18: error: 'ans' was not declared in this scope
         if(t==0||ans==0)
                  ^