Submission #1130290

#	Time	Username	Problem	Language	Result	Execution time	Memory
1130290		Newtonabc	A Huge Tower (CEOI10_tower)	C++20	100 / 100	246 ms	4648 KiB

tower

#include<bits/stdc++.h>
using namespace std;
const long long MOD=1e9+9;
vector<int> v;
int main(){
    int n,d;
    cin>>n >>d;
    long long ans=1;
    for(int i=1;i<=n;i++){
        int inp;
        cin>>inp;
        v.push_back(inp);
    }
    sort(v.begin(),v.end());
    for(int i=0;i<n;i++){
        long long tmp=i-(lower_bound(v.begin(),v.end(),v[i]-d)-v.begin());
        ans=(ans*(tmp+1LL))%MOD;
    }
    cout<<ans;
}

• 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