제출 #170360

#제출 시각아이디문제언어결과실행 시간메모리
170360mdn2002Cipele (COCI18_cipele)C++14
90 / 90
61 ms1272 KiB
#include<bits/stdc++.h>
using namespace std;
const long long mod=998244353;
int n,m,a[100005],b[100005];
bool ck(int x)
{
    if(n>=m)
    {
        int j=0;
        for(int i=0;i<n;i++)
        {
            int aa=max(a[i],b[j]);
            int bb=min(a[i],b[j]);
            if((n-i)<(m-j))return 0;
            if(aa-bb<=x)j++;
            if(j==m)break;
        }
        if(j==m)return 1;
        return 0;
    }
    else
    {
        int j=0;
        for(int i=0;i<m;i++)
        {
            int aa=max(a[j],b[i]);
            int bb=min(a[j],b[i]);
            if((n-j)>(m-i))return 0;
            if(aa-bb<=x)j++;
            if(j==n)break;
        }
        if(j==n)return 1;
        return 0;
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen("lemonade.in","r",stdin);
    //freopen("lemonade.out","w",stdout);
    cin>>n>>m;
    for(int i=0;i<n;i++)cin>>a[i];
    for(int i=0;i<m;i++)cin>>b[i];
    sort(a,a+n);
    sort(b,b+m);
    int l=0,r=1e9+20,mid;
    while(l<r)
    {
        mid=(l+r)/2;
        if(ck(mid))r=mid;
        else l=mid+1;
    }
    cout<<l;
}
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