제출 #207754

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
207754		mahmoudbadawy	Xoractive (IZhO19_xoractive)	C++17	100 / 100	9 ms	504 KiB

Xoractive

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

map<int,int> pos;

vector<int> guess(int n) {
	vector<int> ans=vector<int>(n);
	ans[0]=ask(1);
	for(int i=0;i<=6;i++)
	{
		vector<int> v;
		for(int j=2;j<=n;j++)
		{
			if(j&(1<<i))
				v.push_back(j);
		}
		if(!v.size()) continue;
		vector<int> r1=get_pairwise_xor(v);
		v.push_back(1);
		vector<int> r2=get_pairwise_xor(v);
		map<int,int> mp;
		for(int x:r2)
			if(x) mp[x]++;
		for(int x:r1)
			if(x) mp[x]--;
		for(auto x:mp)
		{
			if(x.second==0) continue;
			pos[x.first^ans[0]]|=(1<<i);
		}
	}
	for(auto i:pos)
		ans[i.second-1]=i.first;
	return ans;
	/*vector <int> ans;
	for (int i = 1; i <= n; i++) {
		ans.push_back(ask(i));
	}
	return ans;*/
}

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