Submission #1154182

#	Time	Username	Problem	Language	Result	Execution time	Memory
1154182		tsengang	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	167 ms	8244 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define ertunt return
const int MOD = 998244353;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
int main() {
    ll n, t;
    cin >> n >> t;
    vector<ll> a(2 * n+5);
    for (ll i = 0; i < n; i++) {
        cin >> a[i];
        a[i] %= t;
    }
    sort(a.begin(), a.begin() + n);
    ll ans = 1e14;
    for (ll i = 0; i < n; i++) {
        ans = min((a[i + n - 1] - a[i] + 1)/2, ans);
        a[i + n] = a[i] + t;
    }
    cout << ans;
}

• Subtask 1: 15 / 15
• Subtask 2: 5 / 5
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35
• Subtask 5: 15 / 15