Submission #1064054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064054		DorostWef	Soccer Stadium (IOI23_soccer)	C++17	64 / 100	2524 ms	820820 KiB

soccer

#include "soccer.h"
#include <bits/stdc++.h>

using namespace std;
const int N = 504, INF = -5000000;
vector <int> a[N][N];
int dp[N][N][N];

int biggest_stadium(int N, std::vector<std::vector<int>> F) {
	int mx = 0;
	int n = N;
	for (int l = n - 1; l >= 0; l--) {
		for (int r = l; r < n; r++) {
			if (l != r) {
				a[l][r] = a[l + 1][r];
			}
			for (int j = 0; j < n; j++) {
				if (F[l][j])
					a[l][r].push_back(j);
			}
			a[l][r].push_back(-1);
			a[l][r].push_back(n);
			sort (a[l][r].begin(), a[l][r].end());
			a[l][r].erase (unique (a[l][r].begin(), a[l][r].end()), a[l][r].end());
			for (int k = 0; k < (int)a[l][r].size() - 1; k++) {
				int L = a[l][r][k];
				int R = a[l][r][k + 1];
				int s = R - L - 1;
				if (L != -1) {
					dp[l][r][L] = INF;
				}
				for (int w = L + 1; w < R; w++) {
					int mm = 0;
					if (l != r) {
						mm = max (dp[l + 1][r][w], dp[l][r - 1][w]);
					}
					dp[l][r][w] = s + mm;
					//cout << l << ' ' << r << ' ' << L << ' ' << R << endl;
					mx = max (mx, dp[l][r][w]);
				}
			}
		}
	}
	return mx;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 6
• Subtask 2: 8 / 8
• Subtask 3: 22 / 22
• Subtask 4: 18 / 18
• Subtask 5: 16 / 16
• Subtask 6: 0 / 30