Submission #417825

#	Time	Username	Problem	Language	Result	Execution time	Memory
417825		Nghes	A Huge Tower (CEOI10_tower)	C++14	100 / 100	146 ms	10556 KiB

tower

#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
#define E '\n'
#define name "main"
#define int ll
const int base = 1e9+9;
const int N = 1e6;
int a[N+13];
int n,k;
signed main(){
    ios::sync_with_stdio(0); cin . tie(0);
    //freopen(name".INP","r",stdin);  freopen(name".OUT","w",stdout);
    cin >> n  >> k;
    for (int i=1; i <= n ; ++i) cin >>a[i];
    sort(a+1,a+1+n,greater<int>());
    int res = 1;
    for (int r =1,l=1; r <= n ; ++r){
        while (a[l] - a[r] > k) ++l;
        res = res * (r-l+1) % base;
    }
    cout << res << E;





}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
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• 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