Submission #927016

#	Time	Username	Problem	Language	Result	Execution time	Memory
927016		blacktulip	Table Tennis (info1cup20_tabletennis)	C++17	58 / 100	3041 ms	4696 KiB

tabletennis

#include <bits/stdc++.h>
 
using namespace std;
 
#define ort ((bas+son)/2)
#define int long long
#define endl "\n"
 
int n,k,a[200005],ind;
bool vis[200005];
 
inline bool check(int l,int r,int sum){
	int say=0;
	while(l<r){
		//~ if(vis[l]){l++;continue;}
		//~ if(vis[r]){r--;continue;}
		if(a[l]+a[r]==sum){
			l++;
			r--;
			say++;
		}
		else if(a[l]+a[r]<sum){
			ind=l;
			vis[l]=1;
			l++;
		}
		else{
			ind=r;
			vis[r]=1;
			r--;
		}
	}
	if(l==r){ind=l;vis[l]=1;}
	if(say>=n/2)return 1;
	return 0;
}
 
int32_t main(void){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	cin>>n>>k;
	for(int i=1;i<=n+k;i++)cin>>a[i];
	for(int i=1;i<=k+1;i++){
		for(int j=n+k;j>=n;j--){
			if(i>=j)break;
			memset(vis,0,sizeof(vis));
			if(check(1,n+k,a[i]+a[j])){
				//~ cout<<a[i]+a[j]<<endl;
				for(int ii=1;ii<=n+k;ii++){
					if(vis[ii])continue;
					cout<<a[ii]<<" ";
				}
				return 0;
			}
		}
	}
	
	return 0;
}

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