Submission #1337215

#	Time	Username	Problem	Language	Result	Execution time	Memory
1337215		hennessey	A Huge Tower (CEOI10_tower)	C++20	100 / 100	108 ms	5188 KiB

tower

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define a first
#define b second
#define pb push_back
#define endl '\n'

int mod = 1e9+9;

signed main() {
    //your code goes here
    ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr);
    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());
    int total = 1;
    for(int i = 0; i < n; i++) {
        int v = lower_bound(a.begin(), a.end(), a[i]-d)-a.begin();
        total *= (i-v+1); total %= mod;
    }
    cout << total << endl;
    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