This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define all(v) ((v).begin()), ((v).end())
#define sz(v) ((int)((v).size()))
typedef long long ll;
typedef vector<int> vi;
typedef vector<pair<ll , int> > vpli;
typedef set<char> st;
typedef stack<int> s;
typedef deque<int> dq;
typedef queue<int> q;
#define fast_io ios_base::sync_with_stdio(0); cin.tie(0)
int minugly (vector<ll> x, vector<ll> y, int i,int j){
if(j-i+1==y.size()){
ll ans =0;
for(int f=0; f<x.size();++f){
ans = max(ans,abs(x[f]-y[f]));
}
return ans;
}
else{
if(abs(x[i]-y[0])>abs(x[j]-y[y.size()-1])){
x.erase(x.begin()+i);
return minugly(x,y,i,x.size()-1);
}
else if (abs(x[j]-y[y.size()-1])>abs(x[i]-y[0])){
x.erase(x.begin()+j);
return minugly(x,y,i,x.size()-1);
}
else{
int choice1 = minugly(x,y,i+1,j);
int choice2 = minugly(x,y,i,j-1);
return min(choice1,choice2);
}
}
}
int main()
{
ll n,m;
cin>>n>>m;
vector<ll>leftt(n);
vector<ll>rightt(m);
for(int i=0; i<n; ++i){
cin>>leftt[i];
}
for(int i=0; i<m; ++i){
cin>>rightt[i];
}
sort(leftt.begin(),leftt.end());
sort(rightt.begin(),rightt.end());
ll ans=0;
if(leftt.size()>rightt.size()){
ans = minugly(leftt,rightt,0,n-1);
}
else if (leftt.size()<rightt.size()){
ans = minugly(rightt,leftt,0,m-1);
}
else{
for(int i=0; i<n; ++i){
ans=max(ans,abs(leftt[i]-rightt[i]));
}
}
cout<<ans<<endl;
return 0;
}
Compilation message (stderr)
cipele.cpp: In function 'int minugly(std::vector<long long int>, std::vector<long long int>, int, int)':
cipele.cpp:14:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
14 | if(j-i+1==y.size()){
| ~~~~~^~~~~~~~~~
cipele.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
16 | for(int f=0; f<x.size();++f){
| ~^~~~~~~~~
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