Submission #1135070

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135070		poat	Xoractive (IZhO19_xoractive)	C++20	0 / 100	1 ms	408 KiB

Xoractive

#include "interactive.h"
// #include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;

set<int> G(vector<int> vec, int n, int a1)
{
	vector<int> v1 = get_pairwise_xor(vec);
	vec.push_back(a1);
	vector<int> v2 = get_pairwise_xor(vec);

	multiset<int> s1;
	for(auto i : v2)
		s1.insert(i);
	for(auto i : v1)
		s1.erase(s1.find(i));
	set<int> res;
	for(auto i : s1)
		res.insert(i);
	res.erase(res.begin());
	return res;
}

struct Node
{
	int l, r;
	set<int> v;
};


vector<int> guess(int N) 
{
	int n = N;
	int a1 = ask(1);

	vector<Node> vec;
	vector<int> V;
	for(int i = 2; i <= n; i++)
		V.push_back(i);
	set<int> ssss = G(V, n, a1);
	vec.push_back({2, n, ssss});
	// for(auto i : vec[0].v)
	// 	cout << i << ' ';
	// exit(0);
	while(1)
	{
		V.clear();
		for(auto i : vec)
		{
			if(i.l == i.r)
				continue;
			int m = (i.l + i.r) / 2;
			for(int j = i.l; j <= m; j++)
				V.push_back(j);
		}
		if(V.size() == 0)
			break;
		set<int> S = G(V, n, a1);
		vector<Node> v2;
		for(auto i : vec)
		{
			if(i.l == i.r)
			{
				v2.push_back(i);
				continue;
			}
			int m = (i.l + i.r) / 2;
			set<int> s1, s2 = i.v;
			for(auto j : i.v)
			{
				if(S.find(j) == S.end())
					continue;
				s2.erase(j);
				s1.insert(j);
			}
			v2.push_back({i.l, m, s1});
			v2.push_back({m + 1, i.r, s2});
		}
		vec = v2;
	}

	vector<int> res(n);
	res[0] = a1;
	for(auto i : vec)
		res[i.l - 1] = *i.v.begin();
	// for(auto i : res)
	// 	cout << i << ' ';
	// cout << "\n";
	// exit(0);
	return res;

	


	
}

• Subtask 1: 0 / 6
• Subtask 2: 0 / 94