Submission #709862

#	Time	Username	Problem	Language	Result	Execution time	Memory
709862		MinaRagy06	Global Warming (CEOI18_glo)	C++17	28 / 100	2062 ms	4952 KiB

glo

#include <bits/stdc++.h>
using namespace std;
#define lesgooo ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define endl    '\n'
#define int     long long

signed main()
{
    lesgooo;
    int n, x;
    cin >> n >> x;
    int a[n];
    for (int i = 0; i < n; i++) cin >> a[i];
    int dp[n][2]{};
    for (int i = n-1; i >= 0; i--) for (int j = 0; j < 2; j++)
    {
        for (int k = i + 1; k < n; k++) if (a[i] < a[k]) dp[i][j] = max(dp[i][j], dp[k][j]);
        if (!j) for (int k = i + 1; k < n; k++) if (a[i]+1-a[k] <= x && -a[i]-1+a[k] <= x) dp[i][j] = max(dp[i][j], dp[k][1]);
        dp[i][j]++;
    }
    int mx = 0;
    for (int i = 0; i < n; i++) mx = max(mx, dp[i][0]);
    cout << mx;
    return 0;
}

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