Submission #1135522

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135522		mychecksedad	Cookies (JOI23_cookies)	C++20	18 / 100	40 ms	2116 KiB

cookies

/* Author : Mychecksdead  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
#define ff first
#define ss second
#define pii pair<int,int>
#define vi vector<int>
const int N = 500+100, M = 1e5+10, K = 52, MX = 30;


int n, b[N], m, DP[N][N];
array<int, 2> a[N];
pair<bool, vector<vi>> f(vector<pii> A){
  vector<vi> res(A.size());
  for(int i = 1; i <= n; ++i){
    if(A.size() < a[i][0]){
      return pair<bool, vector<vi>>{false, res};
    }
    for(int j = 0; j < a[i][0]; ++j){
      if(A[j].ff == 0){
        return pair<bool, vector<vi>>{false, res};
      }
      A[j].ff--;
      res[A[j].ss].pb(a[i][1]);
    }    
    sort(all(A));
    reverse(all(A));
  }
  return pair<bool, vector<vi>>{true, res};
}
void solve(){
  cin >> n;
  int s = 0;
  for(int i = 1; i <= n; ++i){
    cin >> a[i][0];
    a[i][1] = i;
    s += a[i][0];
  }
  sort(a+1, a+1+n);
  cin >> m;
  for(int i = 1; i <= m; ++i){
    cin >> b[i];
  }
  int ans = MOD;

  for(int i = 0; i <= s; ++i){
    for(int j = 0; j <= s; ++j) DP[j][i] = -1;
  }
  DP[0][0] = 0;
  for(int i = 1; i <= m; ++i){
    for(int k = 1; k <= s; ++k){
      for(int j = b[i]; j <= s; ++j){
        if(DP[k][j] == -1 && DP[k - 1][j-b[i]] != -1){
          DP[k][j] = b[i];
        }
      }
    }
  }
  // for(int i = 0; i <= s; ++i){
  //   for(int j= 0; j <= s; ++j){
  //     cout << DP[i][j] << ' ';
  //   }
  //   en;
  // }
  for(int i = 1; i <= s; ++i){
    if(DP[i][s] != -1){
      vector<pii> A;
      int v = s, cur = i;
      while(v > 0 && cur > 0){
        A.pb({DP[cur][v], cur-1});
        v -= DP[cur][v];
        --cur;
      }
      pair<bool, vector<vector<int>>> res = f(A);
      if(res.ff){
        cout << i << '\n';
        for(auto v: res.ss){
          cout << v.size() << ' ';
          for(int u: v) cout << u << ' ';
          en;
        }
        return;
      }
    }
  }
  cout << -1;
}


int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tt = 1, aa;
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  while(tt--){
    solve();
    en;
  }
  cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
  return 0;
} 

• Subtask 1: 6 / 6
• Subtask 2: 0 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 45
• Subtask 5: 0 / 15
• Subtask 6: 0 / 15