제출 #535285

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
535285		idiotcomputer	A Huge Tower (CEOI10_tower)	C++11	100 / 100	295 ms	11344 KiB

tower

#include <vector>
#include <iostream>
#include <algorithm>


int main(){
    int n;
    long long int d;

    std::cin >> n >> d;


    std::vector<long long int> blocks(n);
    for (int i =0; i < n; i++){
        std::cin >> blocks[i];
    }
    std::sort(blocks.begin(),blocks.end());

    long long int mod = 1000000009;
    long long int total = 1;
    int last = 0;
    for (int i =0;i < n; i++){
        while (blocks[i] - blocks[last] > d){
            last += 1;
        }
        total = (long long int) (total * (i - last + 1)) % mod;
    }

    std::cout << total << '\n';
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
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• Subtask 20: 5 / 5