제출 #672359

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
672359		scrge	A Huge Tower (CEOI10_tower)	C++17	30 / 100	261 ms	8772 KiB

tower

#include <bits/stdc++.h>
using namespace std;

int n, d;
vector<int> a;

int main(){
	cin >> n >> d;
	a.resize(n);
	for(int i = 0; i < n; i++)
		cin >> a[i];
	sort(a.rbegin(), a.rend());
	int j = 0;
	int ans = 1;
	for(int i = 0; i < n; i++){
		while(j+1 < n && a[j+1]+d >= a[i]) j++;
		ans *= j+1-i;
	}

	cout << ans;
}

• Subtask 1: 5 / 5
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