Submission #1157163

#	Time	Username	Problem	Language	Result	Execution time	Memory
1157163		Syrius	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	153 ms	2308 KiB

Main

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

// #define int long long
#define ll long long
#define ff first
#define ss second
#define pint pair < int , int >
#define fast ios_base::sync_with_stdio(NULL); cin.tie(NULL)
typedef vector < int > vint;

const int inf = 1e9 + 9;
const int mxn = 5e5 + 2;
const int mod = 1e9 + 7;

int a[mxn];

int main() {

    int n , t;
    cin >> n >> t;

    for (int i = 0; i < n; i++) {
        cin >> a[i];
        a[i] %= t;
    }

    sort(a , a + n);
    int ans = a[n-1] - a[0];

    for (int i = n-1; i >= 1; i--) {
        ans = min(ans , a[i-1] - (a[i] - t));
    }

    cout << (ans + 1) / 2 << '\n';
    return 0;
}

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