Submission #785047

#	Time	Username	Problem	Language	Result	Execution time	Memory
785047		Hanksburger	A Huge Tower (CEOI10_tower)	C++17	100 / 100	111 ms	11120 KiB

tower

#include <bits/stdc++.h>
using namespace std;
long long a[1000005], mod=1000000009;
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    long long n, d, ans=1;
    cin >> n >> d;
    for (long long i=0; i<n; i++)
        cin >> a[i];
    sort(a, a+n);
    for (long long i=0; i<n; i++)
        ans=(ans*(i-(lower_bound(a, a+i, a[i]-d)-a)+1))%mod;
    cout << ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 5 / 5
• Subtask 8: 5 / 5
• Subtask 9: 5 / 5
• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
• Subtask 12: 5 / 5
• Subtask 13: 5 / 5
• Subtask 14: 5 / 5
• Subtask 15: 5 / 5
• Subtask 16: 5 / 5
• Subtask 17: 5 / 5
• Subtask 18: 5 / 5
• Subtask 19: 5 / 5
• Subtask 20: 5 / 5