Submission #1208936

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208936		pinbu	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	61 ms	2376 KiB

Main

#include <iostream>
#include <algorithm>
using namespace std;

const int N = 500005;

int n, T, a[N];

signed main(void) {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    
    cin >> n >> T;
    for (int i = 1; i <= n; i++) {
    	cin >> a[i];
    	a[i] %= T;
    }
    sort(a + 1, a + n + 1);
    int ans = (a[n] - a[1] + 1) >> 1;
    for (int i = n - 1; i; i--) {
    	ans = min(ans, (a[i] - a[i + 1] + T + 1) >> 1);
    }
    cout << ans;
    
    return 0;
}

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