이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#define int long long
#define ll long long
#define pb push_back
const int mod = 1e9+7;
using namespace std;
bool comp(pair<int,int>&a ,pair<int,int>&b)
{
if(a.first==b.first)
{
return a.second>b.second;
}
return a.first<b.first;
}
void solve()
{
int n,m;
cin>>n>>m;
int arr[100005],arr2[100005];
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
for(int i=0;i<m;i++)
{
cin>>arr2[i];
}
int ans=0;
sort(arr,arr+n);
sort(arr2,arr2+m);
int tans=0;
bool vis1[100005]={};
int c=0;
for(int i=0;i<n;i++)
{
int t=1e13;
int ind=0;
for(int j=0;j<m;j++)
{
if(vis1[j])continue;
if(abs(arr[i]-arr2[j])<t)
{
t=abs(arr[i]-arr2[j]);
ind = j;
}
}
vis1[ind]=1;
c++;
tans=max(tans,t);
if(c>=min(n,m))
{
break;
}
}
c=0;
bool vis[100005]={};
for(int i=0;i<m;i++)
{
int t=1e13;
int ind=0;
for(int j=0;j<n;j++)
{
if(vis[j])continue;
if(abs(arr2[i]-arr[j])<t)
{
t=abs(arr2[i]-arr[j]);
ind = j;
}
}
vis[ind]=1;
ans=max(ans,t);
if(c>=min(n,m))
{
break;
}
}
ans=min(ans,tans);
cout<<ans<<endl;
}
int32_t main(){
int t=1;
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
//cin>>t;
while(t--){solve();}
return 0;
}
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