func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 300 * 1000 + 5, SQ = 373;   int a[N];   long long dp[2 * N];   pair<pair<int, int>, int> t[N];   long long finans[N];   int main() {     ios ::sync_with_stdio(false);     int n;     cin >> n;     for (int i = 1; i <= n; i++) {       cin >> a[i];     }     int q;     cin >> q;     for (int i = 1; i <= q; i++) {       cin >> t[i].first.second >> t[i].first.first;       t[i].second = i;     }     sort(t + 1, t + q + 1);     for (int i = 1; i <= q; i++) {       int x = t[i].first.first, y = t[i].first.second;       if (x < SQ) {         if (x != t[i - 1].first.first) {           for (int j = n; j > 0; j--) {             dp[j] = dp[j + x] + a[j];           }         }         finans[t[i].second] = dp[y];       } else {         long long ans = 0;         for (int j = y; j <= n; j += x) {           ans += a[j];         }         finans[t[i].second] = ans;       }     }     for (int i = 1; i <= q; i++) {       cout << finans[i] <<   n ;     }     return 0;   }   