Submission #1089211

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089211		vjudge1	Kpart (eJOI21_kpart)	C++17	0 / 100	1387 ms	194244 KiB

Main

//don't copy pls)
/*TAAK ZDES NADO RECURSIU PISAT*/

//I'm not in the danger i am the DANGER
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long
#define pb push_back
#define int long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int,int>
#define sigma signed
using namespace std;
using namespace __gnu_pbds;
const int N = 1e5 + 5;
int mod = 1e9 + 7;
const int INF = 1e18;
int n,a[N],p[N],dp[121][N];
void Gold(){
	cin >> n;
	for(int i = 1 ;  i <= n ; i++){
		for(int j = 1 ; j <= N ; j++){
			dp[i][j] = 0;
		}
		p[i] = 0;
	}
	for(int i = 1 ; i <= n ; i++){
		cin >> a[i];
		p[i] = p[i - 1] + a[i];
	}
	vector <int> ans;
	for(int k = 2 ; k <= n ; k++){
		bool ok = 1;
		for(int i = k ; i <= n ; i++){
			int sum = p[i] - p[i - k];
			if(sum % 2){
				ok = 0;
				break;
			}
			sum /= 2;
			for(int j = 1 ; j <= n ; j++){
				dp[j][0] = 1;
				for(int x = 1 ; x <= sum ; x++){
					dp[j][x] = 0;
				}
			}
			for(int j = 1 ; j <= n ; j++){
				for(int x = 1 ; x <= sum ; x++){
					dp[j][x] = max(dp[j - 1][x] , dp[j][x]);
					if(x >= a[j]){
						dp[j][x] = max(dp[j][x] , dp[j - 1][x - a[j]]);
					}
				}
			}
			bool okok = 0;
			for(int j = 1 ; j <= n ; j++){
				if(dp[j][sum]){
					okok = 1;
					break;
				}
			}
			if(!okok){
				ok = 0;
				break;
			}
		}
		if(ok){
			ans.pb(k);
		}
	}
	cout << ans.size() << ' ';
	for(auto it : ans){
		cout << it << ' ';
	}
	cout << '\n';
}
sigma main(){
	//freopen("txt.in","r",stdin);
	//freopen("txt.out","w",stdout);
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	srand(time(0));
	int TT = 1;
	cin >> TT;
	for(int i = 1 ; i <= TT ; i++){
		//cout << "Case " << i << ": ";
		Gold();
	}
}

Compilation message (stderr)

Main.cpp: In function 'void Gold()':
Main.cpp:25:13: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations]
   25 |    dp[i][j] = 0;
      |    ~~~~~~~~~^~~
Main.cpp:24:21: note: within this loop
   24 |   for(int j = 1 ; j <= N ; j++){
      |                   ~~^~~~

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