View Compilation Error

0_0_13617928_14852.cpp: In function 'int main()':
0_0_13617928_14852.cpp:9:15: error: conflicting declaration 'long long int ans'
     long long ans;
               ^
0_0_13617928_14852.cpp:8:15: note: previous declaration as 'int ans'
     int t,i,j,ans;
               ^