Submission #710063

#	Time	Username	Problem	Language	Result	Execution time	Memory
710063		mmaiti	A Huge Tower (CEOI10_tower)	C++11	100 / 100	277 ms	8796 KiB

tower

#include <bits/stdc++.h>
using namespace std;

const int MOD = 1e9 + 9;
int main()
{
    int N, D;
    cin >> N >> D;
    vector<int> arr(N);
    for(int i = 0; i < N; i++)
    cin >> arr[i];
    sort(arr.begin(), arr.end());
    int sol = 1, r = 0;
    for(int l = 0; l < N; l++)
    {
        while(r < N - 1 && arr[r+1] <= arr[l] + D) r++;
        int dist = r - l + 1;
        sol = (sol * 1LL * dist) % MOD;
    }
    cout << sol;
}

• 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