Submission #521291

#	Time	Username	Problem	Language	Result	Execution time	Memory
521291		Baytoro	Table Tennis (info1cup20_tabletennis)	C++17	87 / 100	3069 ms	5696 KiB

tabletennis

#include <bits/stdc++.h>
using namespace std;
#define Baytoro_MayrambekovOrz void solve()
#define ios ios::sync_with_stdio(false); cin.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define int long long
int n,k;
vector<int> vec,ans;
bool check(int x){
	int i;
	int cnt=0;
	ans.clear();
	int r=n+k-1;
	
	for(i=0;i<r && cnt<n/2;i++){
		while(r>i && vec[i]+vec[r]>x)
			r--;
		if(r>i && vec[i]+vec[r]==x){
			cnt++;
			ans.pb(vec[i]);
			ans.pb(vec[r]);
		}
	}
	
	return n/2==cnt;
}
int a,b,c,m,j,x,y,cnt=0,sum=0,res=0;
Baytoro_MayrambekovOrz{
	int i;
	cin>>n>>k;
	vec.resize(n+k);
	for(i=0;i<n+k;i++){
		cin>>vec[i];
	}
	for(i=0;i<=min(k*2,n+k);i++){
		for(j=max(0ll,n-k);j<n+k;j++){
			if(check(vec[i]+vec[j])){
				sort(all(ans));
				for(auto it: ans)
					cout<<it<<' ';
				return;
			}
		}
	}
}
main(){
	ios;
	int T=1;
	//cin>>T;
	while(T--){
		solve();
	}
}

Compilation message (stderr)

tabletennis.cpp:50:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   50 | main(){
      | ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 9 / 9
• Subtask 3: 14 / 14
• Subtask 4: 15 / 15
• Subtask 5: 9 / 9
• Subtask 6: 14 / 14
• Subtask 7: 15 / 15
• Subtask 8: 0 / 13