View Compilation Error

0_0_36676729_28237.cpp:4:9: error: array bound is not an integer constant before ']' token
 int dp[N];
         ^
0_0_36676729_28237.cpp:7:10: error: array bound is not an integer constant before ']' token
 int cnt[N];
          ^
0_0_36676729_28237.cpp: In function 'int main()':
0_0_36676729_28237.cpp:17:9: error: 'cnt' was not declared in this scope
         cnt[i] = __builtin_popcount(i);
         ^
0_0_36676729_28237.cpp:24:9: error: 'dp' was not declared in this scope
         dp[0] = 1;
         ^
0_0_36676729_28237.cpp:52:21: error: 'cnt' was not declared in this scope
                 ans[cnt[j]] = (ans[cnt[j]] + dp[j]) % mod;
                     ^