Submission #1278342

#	Time	Username	Problem	Language	Result	Execution time	Memory
1278342		DottedHawk	A Huge Tower (CEOI10_tower)	C++20	100 / 100	214 ms	5256 KiB

tower

#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
typedef long long ll;

int main() {
    //freopen("imp.txt", "r", stdin);
    ll n, d; cin >> n>> d;
    vector<ll> V(n);
    for(ll& x: V) cin >> x;
    sort(V.begin(), V.end());

    ll ans = 1;
    ll l = 0;
    for(ll r = 1; r<n; r++) {
        while(V[r]-V[l] > d) l++;
        ans*=((r-l)+1);
        ans%=1000000009;
    }

    cout << ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
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• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
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• Subtask 14: 5 / 5
• Subtask 15: 5 / 5
• Subtask 16: 5 / 5
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• Subtask 18: 5 / 5
• Subtask 19: 5 / 5
• Subtask 20: 5 / 5