Submission #725714

#	Time	Username	Problem	Language	Result	Execution time	Memory
725714		Nakib	A Huge Tower (CEOI10_tower)	C++17	100 / 100	256 ms	10488 KiB

tower

#include <bits/stdc++.h>

using namespace std;
#define int long long
const int mod=1e9+9;

int32_t main()
{
    int n,k;cin>>n>>k;
    int a[n];
    for(int i=0;i<n;i++) cin>>a[i];
    sort(a,a+n);
    int i=0,j=0,ans=1;
    while(i<n){
        while(j<n && a[j]-a[i]<=k) j++;
        //cout<<j<<" "<<i<<endl;
        ans*=(j-i)%mod;
        ans%=mod;
        i++;
    }
    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