Submission #1068335

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068335		Kiet07	A Huge Tower (CEOI10_tower)	C++14	100 / 100	85 ms	8744 KiB

tower

#include<bits/stdc++.h>
using namespace std;
long long mod=1e9+9;
int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n,d; cin>>n>>d;
	vector<int>a(n);
	for(int i=0;i<n;i++)
	{
		cin>>a[i];
	}
	sort(a.begin(),a.end());
	long long ans=1;
	int l=0;
	for(int r=0;r<n;r++)
	{
		while(a[r]>a[l]+d)
		{
			l++;
		}
		ans=(ans*1ll*(r-l+1))%mod;
	}
	cout<<ans;
	return 0;
}

• 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