제출 #1138736

#제출 시각아이디문제언어결과실행 시간메모리
1138736ThylOneRoom Temperature (JOI24_ho_t1)C++20
5 / 100
1 ms580 KiB
#include<bits/stdc++.h>

#define int long long
using namespace std;

signed main(){
    ios::sync_with_stdio(false);cin.tie(0);
    int n,t;cin>>n>>t;
    vector<int> a(n);
    for(int &i:a){cin>>i;i%=t;}

    vector<int> pa;
    for(int i = 0 ; i < n ; i++){
        pa.push_back(a[i]);
        pa.push_back(t-a[i]);
    }
    sort(pa.begin(), pa.end());
    int ans = 1e18;
    for(int i = 0 ; i < n ; i++){
        ans = min(ans, pa[n-1+i]-pa[i]);
    }
    cout << (ans+1)/2 << endl;

}
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