Submission #958519

#	Time	Username	Problem	Language	Result	Execution time	Memory
958519		MinaRagy06	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	74 ms	2696 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
#define ll long long

const int N = 2005;
const int inf = 1e9;
bool dp[N][N];
int dp2[N];
int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int n, l, r;
	cin >> n >> l >> r;
	ll a[n + 1], prf[n + 1]{};
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		prf[i] = prf[i - 1] + a[i];
	}
	ll msk = (1ll << 41) - 1;
	for (int b = 40; b >= 0; b--) {
		msk ^= 1ll << b;
		ll gud = 1;
		if (l > 1) {
			for (int j = 0; j <= n; j++) {
				for (int i = 0; i <= n; i++) {
					dp[j][i] = 0;
				}
			}
			dp[0][0] = 1;
			for (int j = 1; j <= n; j++) {
				for (int i = 1; i <= n; i++) {
					for (int k = i - 1; k >= 0; k--) {
						if ((msk | (prf[i] - prf[k])) == msk) {
							dp[j][i] |= dp[j - 1][k];
						}
					}
				}
			}
			for (int k = l; k <= r; k++) {
				if (dp[k][n]) {
					gud = 0;
					break;
				}
			}
		} else {
			for (int i = 1; i <= n; i++) {
				dp2[i] = inf;
				for (int k = i - 1; k >= 0; k--) {
					if ((msk | (prf[i] - prf[k])) == msk) {
						dp2[i] = min(dp2[i], dp2[k] + 1);
					}
				}
			}
			if (dp2[n] <= r) gud = 0;
		}
		msk ^= gud << b;
	}
	cout << msk << '\n';
	return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 29 / 29