Submission #1131466

#	Time	Username	Problem	Language	Result	Execution time	Memory
1131466		Alihan_8	A Huge Tower (CEOI10_tower)	C++20	100 / 100	100 ms	5188 KiB

tower

#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
#define size(x) (int)(x).size()
#define int long long

typedef pair <int,int> pii;

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

const int Mod = 1e9 + 9;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n, d; cin >> n >> d;
    
    vector <int> h(n);
    
    for ( auto &u: h ) cin >> u;
    
    sort(all(h));
    
    int ans = 1, j = 0;
    
    for ( int i = 0; i < n; i++ ){
		while ( h[j] + d < h[i] ) j++;
		
		ans = ans * (i - j + 1) % Mod;
	}
	
	cout << ans;
    	 
    cout << '\n';
}

• 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