Submission #921400

#	Time	Username	Problem	Language	Result	Execution time	Memory
921400		TAhmed33	Group Photo (JOI21_ho_t3)	C++98	0 / 100	0 ms	348 KiB

Main

#include <bits/stdc++.h>
using namespace std;
int n, a[5001], dp[5001], pos[501];
int main () {
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = 1; i <= n; i++) {
		dp[i] = 1e9;
		int sze = 0;
		memset(pos, 0, sizeof(pos));
		for (int j = 1; j <= n; j++) {
			if (a[j] <= i) {
				pos[a[j]] = ++sze;
			}
		}
		for (int j = i; j >= 1; j--) {
			int sum = 0;
			int cnt = j;
			for (int l = i; l >= j; l--) {
				sum += abs(cnt - pos[l]);
				cnt++;
			}
			sum += dp[j - 1];
			dp[i] = min(dp[i], sum);
		}
	}
	//for (int i = 1; i <= n; i++) cout << dp[i] << " ";
	//cout << '\n';
	cout << dp[n] << '\n';
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 32
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36