제출 #667626

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
667626		vh50	Table Tennis (info1cup20_tabletennis)	C++17	0 / 100	3090 ms	13904 KiB

tabletennis

#include <bits/stdc++.h>
#define int long long
#define endl "\n"
using namespace std;
vector <int> v, sp, resp;
map <int, int> mm;
int n, k, val;
int test(int s)
{
	int c = 0;
	for(auto i : v)
	{
		if(mm.find(s - i) != mm.end())	c++;
	}
	if(c < n)	return 0;
	return 1;
}
main()
{
	cin >> n >> k;
	int a1 = 1e9, a2 = -1, mn;
	for(int i = 0; i < n + k; i++)	{int aux; cin >> aux; v.push_back(aux); mm[aux] = 1; a1 = min(a1, aux); a2 = max(a2, aux); mn = a1 + a2;}
	sort(v.begin(), v.end());
	for(int i = 0; i < n + k; i++)
	{
		if(i == 0)	sp.push_back(v[i]);
		else	sp.push_back(sp[i - 1] + v[i]);
	}
	int sss = 0;
	mn = v[0] + v[n - 1];
	int ini = max(mn, (2LL * sp[n - 1])/n);
	mn = v[n + k - 1] + v[k];
	int fim = min(mn, (2LL * (sp[n + k - 1] - sp[k - 1]))/n);
	for(int i = ini; i <= fim; i++)
	{
		if(test(i) && !sss)
		{
			int c = 0;
			for(auto j : v)
			{
				if(c == n)	break;
				if(mm.find(i - j) != mm.end())
				{
					sss = 1;
					c+=2;
					resp.push_back(j);
					resp.push_back(i - j);
				}
			}
		}
	}
	sort(resp.begin(), resp.end());
	for(auto i : resp)	cout << i << " ";
}

컴파일 시 표준 에러 (stderr) 메시지

tabletennis.cpp:18:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   18 | main()
      | ^~~~

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