Submission #930475

#	Time	Username	Problem	Language	Result	Execution time	Memory
930475		Darren0724	A Huge Tower (CEOI10_tower)	C++17	100 / 100	92 ms	11368 KiB

tower

#include <bits/stdc++.h>
using namespace std;
#define int long long 
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define all(x) x.begin(), x.end()
const int N=200005;
const int INF=1e18;
const int mod=1e9+9;
int32_t main() {
    LCBorz;
    int n,k;cin>>n>>k;
    vector<int> v(n+1);
    for(int i=0;i<n;i++){
        cin>>v[i];
    }
    v[n]=INF;
    sort(all(v));
    int ans=1;
    for(int i=n-1,j=n-1;i>=0;i--){
        while(j>=i&&v[j]>v[i]+k)j--;
        ans=ans*(j-i+1)%mod;
    }
    cout<<ans<<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