Submission #1214190

#	Time	Username	Problem	Language	Result	Execution time	Memory
1214190		PenguinsAreCute	Cookies (JOI23_cookies)	C++17	13 / 100	393 ms	441600 KiB

cookies

#include <bits/stdc++.h>
using namespace std;
int main() {
	int n, tot = 0;
	cin >> n;
	priority_queue<pair<int,int>> pq;
	for(int i=0,a;i<n;i++) {
		cin >> a;
		tot += a;
		pq.push({a,i});
	}
	vector<vector<int>> sol;
	auto add = [&pq,&sol](int s) {
		sol.push_back(vector<int>(s,0));
		vector<pair<int,int>> used;
		for(int i=0;i<s;i++) {
			auto [cnt, idx] = pq.top();
			assert(cnt);
			pq.pop();
			used.push_back({cnt-1,idx});
			sol.back()[i] = idx;
		}
		for(auto i: used)
			pq.push(i);
	};
	int m;
	cin >> m;
	int b[m];
	for(int i=0;i<m;i++)
		cin >> b[i];
	bool dp[m+1][tot+1][tot+1];
	memset(dp,0,sizeof(dp));
	dp[0][0][0] = 1;
	for(int i=1;i<=m;i++) {
		memcpy(dp[i],dp[i-1],sizeof(dp[i]));
		for(int j=0;j<tot;j++)
			for(int k=0;k<=tot-b[i-1];k++)
				if(dp[i][j][k])
					dp[i][j+1][k+b[i-1]] = 1;
	}
	for(int j=pq.top().first;j<=tot;j++)
		if(dp[m][j][tot]) {
			int i1 = m, j1 = j, k1 = tot;
			while(i1) {
				if(j1 && k1 >= b[i1-1] && dp[i1][j1-1][k1-b[i1-1]]) {
					j1--;
					k1 -= b[i1-1];
					add(b[i1-1]);
				} else
					i1--;
			}
			break;
		}
	if(!sol.size()) {
		cout << -1;
		return 0;
	}
	cout << sol.size() << "\n";
	for(auto i: sol) {
		cout << i.size() << " ";
		for(auto j: i)
			cout << j+1 << " ";
		cout << "\n";
	}
}

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