제출 #632637

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
632637		pragmatist	Kpart (eJOI21_kpart)	C++17	30 / 100	2077 ms	2280 KiB

Main

#include<bits/stdc++.h>
 
#define ll long long
#define pb push_back
#define sz(v) (int)v.size()
#define nl "\n"
 
using namespace std;
 
const int N = (int)1e3 + 7;
const int MOD = (int)1e9 + 7;
const int M = (int)5e5 + 7; 

int n, a[N], dp[M], lst[M];
bool ok[N]; 

void solve() {
	cin >> n;
	for(int i = 1; i <= n; ++i) cin >> a[i];
	fill(ok + 1, ok + 1 + n, 1);
	fill(lst, lst + M, -1);
	for(int i = 1; i <= n; ++i) {
		for(int w = M - a[i] - 1; w >= 0; --w) {
			if(lst[w] != -1) lst[w + a[i]] = max(lst[w + a[i]], lst[w]);
		}
	    lst[a[i]] = i;
		int sum = 0;
		for(int j = i; j >= 1; --j) {
			sum += a[j];
			if(sum & 1) {
				ok[i - j + 1] = 0;
			} else {
				if(lst[sum / 2] < j) ok[i - j + 1] = 0;
			}
		}
	}

	vector<int> ans;
	for(int i = 1; i <= n; ++i) if(ok[i]) ans.pb(i);
	cout << sz(ans) << ' ';
	for(auto x : ans) cout << x << ' ';
	cout << nl;
}
 
int main() {
	ios_base::sync_with_stdio(NULL);
	cin.tie(0);
	cout.tie(0);
	int test;
	cin >> test;
	while(test--) {
		solve();
	}
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 70