View Compilation Error

0_0_36476086_13762.cpp: In function 'void solve(ll, ll, ll)':
0_0_36476086_13762.cpp:50:21: error: invalid types 'll {aka long long int}[ll {aka long long int}]' for array subscript
         if(ans[i - l] == 1) ans = (ans + d[i - l]) % MOD;
                     ^