Submission #973573

#	Time	Username	Problem	Language	Result	Execution time	Memory
973573		TAhmed33	Global Warming (CEOI18_glo)	C++98	15 / 100	2048 ms	3504 KiB

glo

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 25;
int n, x, a[MAXN], dp[MAXN];
int LIS () {
	for (int i = 1; i <= n; i++) {
		dp[i] = 0;
		for (int j = 1; j < i; j++) {
			if (a[j] < a[i]) {
				dp[i] = max(dp[i], dp[j]);
			}
		}
		dp[i]++;
	}
	return *max_element(dp + 1, dp + n + 1);
}
void solve () {
	cin >> n >> x;
	for (int i = 1; i <= n; i++) cin >> a[i];
	int mx = 0;
	for (int i = -x; i <= x; i++) {
		for (int j = 1; j <= n; j++) {
			for (int k = 1; k <= j; k++) {
				a[k] += i;
			}
			mx = max(mx, LIS());
			for (int k = 1; k <= j; k++) {
				a[k] -= i;
			}
		}
	}
	cout << mx << '\n';
}
signed main () {
	ios::sync_with_stdio(0); cin.tie(0);
	int t = 1; //cin >> t;
	while (t--) solve();
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25