Submission #1356639

#	Time	Username	Problem	Language	Result	Execution time	Memory
1356639		guardianec	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	58 ms	4164 KiB

Main

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

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    
    ll n,t;
    cin >> n >> t;
    vector<ll> a(n);
    for (int i=0; i<n; i++) {
        cin >> a[i];
        a[i]%=t;
    }
    sort(a.begin(), a.end());
    a.erase(unique(a.begin(), a.end()), a.end());
    
    if (a.size()==1) {
        cout << 0;
        return 0;
    }
    
    ll m = a.size();
    ll d = 0;
    for (int i=0; i<m-1; i++) {
        d = max(d, a[i+1]-a[i]);
    }
    d = max(d, (a[0]+t)-a[m-1]);
    
    cout << (t-d+1)/2;
}

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