Submission #855002

#	Time	Username	Problem	Language	Result	Execution time	Memory
855002		VMaksimoski008	A Huge Tower (CEOI10_tower)	C++14	30 / 100	76 ms	5212 KiB

tower

#include <bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define uniq(x) x.erase(unique(all(x)), x.end())
#define rall(x) x.rbegin(), x.rend()
#define int long long

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;

void setIO() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}

int32_t main() {
    setIO();

    int n, d;
    cin >> n >> d;

    vector<int> v(n);
    for(int &x : v) cin >> x;

    ll ans = 1;
    sort(all(v));

    int j=n-1;
    for(int i=n-2; i>=0; i--) {
        while(v[i] + d < v[j]) j--;
        ans *= (j - i + 1);
        ans %= mod;
    }

    cout << ans << '\n';
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
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• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
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• Subtask 20: 0 / 5