Submission #15528

#	Time	Username	Problem	Language	Result	Execution time	Memory
15528		yukariko	분배 (kriii3_Q)	C++98	24 / 24	426 ms	4020 KiB

Q

#include <iostream>
#include <algorithm>
#include <cstdio>
#include <vector>
#include <list>

using namespace std;

int a[16];
bool visit[1 << 16];
int N,K;
list<int> p[17];

bool end;
int sel[1<<16];
void solve(int pos, int depth, int cnt, int sum)
{
	if(cnt == 0 && sum == 0)
	{
		sort(sel, sel+depth);
		for(int i=0; i < depth; i++)
		{
			cout << sel[i] << " ";
		}
		cout << "\n";
		end = true;
		return;
	}
	
	if(pos > N || cnt == 0 || sum < pos)
		return;
	
	if(p[pos].empty())
		return solve(pos+1, depth, cnt, sum);
	
	// no select
	solve(pos+1, depth, cnt, sum);
	
	if(end)
		return;
		
	// select
	//sel[depth] = p[pos].back();
	sel[depth] = pos;
	p[pos].pop_back();
	solve(pos, depth+1, cnt-1, sum - pos);
	if(!end)
		p[pos].push_back(sel[depth]);
}

int main()
{
	cin >> N >> K;
	
	a[0] = 0;
	for(int i=1; i <= 16; i++)
		a[i] = a[i-1] * 2 + (1 << (i-1));

	int one_put = a[N] / (1 << K);
	int n_put = 1 << (N-K);
	
	for(int i=0, n = 1 << N; i < n; i++)
	{
		int count = 0;
		for(int j = i; j; j >>= 1)
			count += j & 1;
			
		p[count].push_back(i);
	}

	for(int n = 1 << K; n--;)
	{
		int P=0,Q=0;
		for(int j=0,k=0; j <= N && k < n_put; j++)
		{
			if(p[j].empty() || p[N-j].empty())
				continue;
			if(j == N-j && p[j].size() < 2)
				continue;
			cout << p[j].back() << " ";
			p[j].pop_back();
			cout << p[N-j].back() << " ";
			p[N-j].pop_back();
			k+=2;
			P += N;
			j--;
		}
		cout << "\n";
	}
			
	
	return 0;
}

• Subtask 1: 24 / 24