Submission #284801

#	Time	Username	Problem	Language	Result	Execution time	Memory
284801		limabeans	Skyscraper (JOI16_skyscraper)	C++17	5 / 100	2099 ms	384 KiB

skyscraper

#include <bits/stdc++.h>
using namespace std;

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl





using ll = long long;

const ll mod = 1e9+7;
const int maxn = 1e6 + 5;



int n, L;
vector<int> a;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);  cout.tie(0);

    cin>>n>>L;
    a.resize(n);
    for (int i=0; i<n; i++) {
	cin>>a[i];
    }

    sort(a.begin(), a.end());

    ll res = 0;

    do {
	ll cur = 0;
	for (int i=0; i+1<n; i++) {
	    cur += abs(a[i]-a[i+1]);
	}
	//watch(cur);
	if (cur <= L) res++;
    } while (next_permutation(a.begin(), a.end()));

    cout<<res<<endl;
    
    
    return 0;
}

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