Submission #363980

# Submission time Handle Problem Language Result Execution time Memory
363980 2021-02-07T17:53:49 Z MaisyDoge13 A Huge Tower (CEOI10_tower) C++17
100 / 100
133 ms 10732 KB
#include <iostream>
#include <cstdio>
#include <vector>
#include <utility>
#include <cmath>
#include <climits>
#include <algorithm>
#include <array>
#include <set>
#include <map>
using namespace std;

#define input "tower.in"
#define output "tower.out"
#define int long long
#define MOD (int)(1e9+9)
int n, k;
vector<int> a;
signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    //freopen(input, "r", stdin);
    //freopen(output, "w", stdout);
    cin >> n >> k;
    a.reserve(n+1);
    for (int i=0;i<n;i++) {
        int x; cin >> x;
        a.push_back(x);
    }
    a.push_back(LLONG_MAX);
    sort(a.begin(), a.end());
    int ans=1,r=1,l=0;
    while (r<=n) {
        //cout << "l r " << l << ' ' << r << endl;
        int blocks = r-l;//when this is the base and all the previous ones have been used, this is the size to build
        if (a[l]+k>=a[r]) r++;
        else if (a[l]+k<a[r]) {
            ans=(blocks*ans)%MOD;
            //cout << blocks << endl;
            l++;
            if (r==l) r++;
        }
    }
    cout << ans%MOD << endl;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 10 ms 748 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 55 ms 2284 KB Output is correct
2 Correct 54 ms 4716 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 110 ms 5228 KB Output is correct
2 Correct 133 ms 10732 KB Output is correct