Submission #480203

#	Time	Username	Problem	Language	Result	Execution time	Memory
480203		mohamedsobhi777	A Huge Tower (CEOI10_tower)	C++14	90 / 100	31 ms	4188 KiB

tower

#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 7;
const int mod = 1e9 + 9 ; 
int n, d ; 
int a[N] ; 

int main()
{
       ios_base::sync_with_stdio(0);
       cin.tie(0);
#ifndef ONLINE_JUDGE
#endif
       cin >> n >> d ; 
       for(int i = 1 ;i <= n; ++ i){
              cin >> a[i] ; 
       }
       sort(a + 1, a + n + 1) ; 
       int j = 1; 
       int ans = 1 ; 
       for(int i = 1 ;i <= n;++ i){
              while(a[i]-a[j]>d) ++ j; 
              int len = i - j + 1; 
              ans = 1ll * ans * len % mod ; 
       }
       cout << ans ; 
       return 0;
}

• Subtask 1: 5 / 5
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• Subtask 20: 0 / 5