func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int t = 1;     while (t--) {       int n, k;       cin >> n >> k;       vector<int> m(n), c(k + 1), cnt(k + 1, 0);       for (int i = 0; i < n; i++) {         cin >> m[i];         cnt[m[i]]++;       }       for (int i = 1; i <= k; i++) cin >> c[i];       for (int i = k - 1; i >= 1; i--) cnt[i] += cnt[i + 1];       sort(m.begin(), m.end());       int x, mx = 0;       for (int i = 1; i <= k; i++) {         x = cnt[i] / c[i];         if (cnt[i] % c[i] != 0) x++;         mx = max(x, mx);       }       cout << mx <<   n ;       vector<vector<int> > ans(mx);       int j = 0;       for (int i = n - 1; i >= 0; i--) {         ans[j].push_back(m[i]);         j = (j + 1) % mx;       }       for (int i = 0; i < mx; i++) {         cout << ans[i].size() <<    ;         for (auto x : ans[i]) cout << x <<    ;         cout <<   n ;       }     }   }   