Submission #1294336

#	Time	Username	Problem	Language	Result	Execution time	Memory
1294336		camil7	Skyscraper (JOI16_skyscraper)	C++20	5 / 100	2095 ms	576 KiB

skyscraper

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define int long long
#define ll long long
#define ull unsigned long long
#define lb lower_bound
#define ub upper_bound
#define IOS ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)

int gcd(int a, int b){
    return __gcd(a, b);
}
int lcm(int a, int b){
    return a / gcd(a, b) * b;
}

int dx[] = {-1, -1, -1, 0, 0, 1, 1, 1};
int dy[] = {-1, 0, 1, -1, 1, -1, 0, 1};

void solve(){
    int n, L;
    cin >> n >> L;
    vector<int> vt;
    for (int i = 1; i <= n; i++ ){
        int a;
        cin >> a;
        vt.push_back(a);
    }
    sort(vt.begin(), vt.end());
    int ans = 0;
    do{
        int sum = 0;
        for (int i = 1; i < vt.size(); i++ ){
            sum += abs(vt[i] - vt[i - 1]);
        }
        if(sum <= L)ans++;
        ans %= (int) 1e9 + 7;
    }while(next_permutation(vt.begin(), vt.end()));
    cout << ans << endl;
}
signed main(){
    IOS;
    int t = 1;
    //cin >> t;
    while (t--){
        solve();
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 15
• Subtask 3: 0 / 80