Submission #1336924

#	Time	Username	Problem	Language	Result	Execution time	Memory
1336924		ykc0606	A Huge Tower (CEOI10_tower)	C++20	100 / 100	86 ms	5188 KiB

tower

#include <bits/stdc++.h>
#define int long long
#define N 200001

using namespace std;

const int mod=1e9+9;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,d;
    cin >> n >> d;
    vector<int> a(n+1);
    for(int i=1;i<=n;i++){
        cin >> a[i];
    }
    sort(a.begin()+1,a.end());
    int r=1,ans=1;
    for(int l=1;l<=n;l++){
        while(r<=n && a[r]-a[l]<=d)r++;
        ans=(ans*(r-l))%mod;
    }
    cout << ans << "\n";
    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