Submission #686273

#	Time	Username	Problem	Language	Result	Execution time	Memory
686273		smartmonky	Table Tennis (info1cup20_tabletennis)	C++14	38 / 100	3078 ms	13456 KiB

tabletennis

#include <bits/stdc++.h>
 
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define int long long

using namespace std;

int a, b, c, d;
main(){
	ios_base::sync_with_stdio(0);
    cin.tie(0);
	int n, k;
	cin >> n >> k;
	vector <int> v(n + k), vis(n + k);
	map <int,int> mp;
	for(int i = 0; i < n + k; i++){
		cin >> v[i];
		mp[v[i]]++;
	}
	for(int l = 0; l < k; l++){
		for(int r = n + k - 1; r >= (n + k - 1) - (k - l); r--){
			int cnt = l + (n + k - 1) - r;
			for(int i = l; i <= r; i++){
				if(!mp.count(v[l] + v[r] - v[i])){
					cnt++;
					vis[i] = 0;
				}else{
					vis[i] = 1;
				}
			}
			if(cnt == k){
				//cout << "YES";
				for(int j = l; j <= r; j++){
					if(vis[j] == 1)
						cout << v[j] <<" ";
				}
				cout << endl;
				return 0;
				
			}
		}
	}
}

Compilation message (stderr)

tabletennis.cpp:13:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   13 | main(){
      | ^~~~

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