제출 #1182523

#제출 시각아이디문제언어결과실행 시간메모리
1182523ALTAKEXERoom Temperature (JOI24_ho_t1)C++20
100 / 100
149 ms8232 KiB
#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
using namespace std;
int main()
{
    ll n, T;
    cin >> n >> T;
    ll a[2 * n + 5];
    for (ll i = 1; i <= n; i++)
        cin >> a[i], a[i] = a[i] % T;
    sort(a + 1, a + n + 1);
    ll ans = T;
    for (ll i = 1; i <= n; i++)
    {
        ans = min(ans, (a[i + n - 1] - a[i] + 1) / 2);
        a[i + n] = a[i] + T;
    }
    cout << ans;
    return 0;
}
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