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 ll long long
#define pb push_back
#define F first
#define S second
#define coy cout<<"YES\n"
#define con cout<<"NO\n"
#define co1 cout<<"-1\n"
#define sc(x) scanf("%lld",&x)
#define all(x) x.begin(),x.end()
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int SI=3e5+7;
ll INF=8e18+7;
int dx[] = {1 , -1 , 0 , 0};
int dy[] = {0 , 0 , 1 , -1};
int MOD=1e9+7;
ll n,k,a[SI];
int main()
{
fast
cin>>n>>k;
for (int i=0;i<n+k;i++)
cin>>a[i];
//if (k==1)
{
ll f=0,s=n+k-2;
ll sum=a[f]+a[s];
bool ok=0;
while (f<s)
{
if (sum!=a[f++]+a[s--])
{ok=1;
break;}
}
if (!ok)
{
for (int i=0;i<n+k-1;i++)
cout <<a[i]<<" ";
return 0;
}
ok=0;
f=1,s=n+k-1;
sum=a[f]+a[s];
while (f<s)
{
if (sum!=a[f++]+a[s--])
{ok=1;
break;}
}
if (!ok)
{
for (int i=1;i<n+k;i++)
cout <<a[i]<<" ";
return 0;
}
f=0,s=n+k-1;
sum=a[f]+a[s];
vector < ll> ans;
ans.clear();
while(f<s)
{
if (a[f]+a[s]==sum)
ans.pb(a[f]),ans.pb(a[s]),f++,s--;
else
{
if (a[f+1]+a[s]==sum)
f++;
else s--;
}
}
sort (ans.begin(),ans.end());
for (auto y:ans)
cout <<y<<" ";
}
// use scanf not cin
return 0;
}
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