Submission #1321899

#	Time	Username	Problem	Language	Result	Execution time	Memory
1321899		hansen	A Huge Tower (CEOI10_tower)	C++20	100 / 100	86 ms	5176 KiB

tower

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pb push_back
mt19937 rng((int)chrono::steady_clock::now().time_since_epoch().count());
int hashp = uniform_int_distribution<int>(10, 1e9)(rng);
int hashm1 = 1e9+7;
int hashm2 = 1e9+9;
int MOD = 1e9+9;
int MV = 1e18;

void solve(){
    int n, d;
    cin >> n >> d;
    int res = 1;
    vector<int> a(n);
    for(int i = 0; i < n; i++) cin >> a[i];
    sort(a.begin(), a.end());
    int l = 0;
    for(int r = 0; r < n; r++){
        while(l < r && a[r] > a[l]+d) l++;
        res *= (r-l+1);
        res %= MOD;
    }
    cout << res;
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    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