Submission #1220904

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220904		AlgorithmWarrior	A Huge Tower (CEOI10_tower)	C++20	100 / 100	187 ms	4516 KiB

tower

#include <bits/stdc++.h>

using namespace std;

int const MOD=1000000009;
vector<int>v;
int n,d;

int main()
{
    cin>>n>>d;
    int i;
    for(i=1;i<=n;++i){
        int val;
        cin>>val;
        v.push_back(val);
    }
    sort(v.begin(),v.end());
    int rez=1;
    int id=0;
    for(i=0;i<n;++i){
        while(v[id]<v[i]-d)
            ++id;
        rez=1LL*rez*(i-id+1)%MOD;
    }
    cout<<rez;
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
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• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
• Subtask 12: 5 / 5
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• Subtask 14: 5 / 5
• Subtask 15: 5 / 5
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• Subtask 18: 5 / 5
• Subtask 19: 5 / 5
• Subtask 20: 5 / 5