Submission #936843

#	Time	Username	Problem	Language	Result	Execution time	Memory
936843		john	A Huge Tower (CEOI10_tower)	C++14	100 / 100	109 ms	8248 KiB

tower

#include <bits/stdc++.h>

using namespace std;

int main() {
    std::cout.sync_with_stdio(0);
    std::cin.tie(0);
    int n,d;
    std::cin>>n>>d;
    std::vector<int> arr(n);
    for (int i = 0; i < n; i++) {
        std::cin>>arr[i];
    }
    std::sort(arr.begin(), arr.end());
    int ans = 1;
    int j = 0;
    for (int i = 0; i < n; i++) {
        while (j<n && arr[i]+d>=arr[j]) {
            j++;
        }
        ans=(ans*1LL*(j-i))%1000000009;
    }
    std::cout << ans << std::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