Submission #393963

#	Time	Username	Problem	Language	Result	Execution time	Memory
393963		jadDebugs	A Huge Tower (CEOI10_tower)	C++14	35 / 100	327 ms	5140 KiB

tower

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

const int mod = 1e9+9;

int main()
{
    int n, d; cin >> n >> d;

    vector<int> arr(n);
    vector<int> dp(n);
    dp[0] = 1;

    for (int i = 0; i < n; i++)
        cin >> arr[i];
    sort(arr.begin(), arr.end());
    int ans = 1; 
    for (int r = 1, l = 0; r < n; r++) {
        while (l < r && arr[l] + d < arr[r])
            l++;
        ans = ((r-l+1) * ans*1LL) % mod;
    }

    cout << ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
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• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
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• Subtask 20: 0 / 5