제출 #521921

#제출 시각아이디문제언어결과실행 시간메모리
521921dostigatorXoractive (IZhO19_xoractive)C++17
0 / 100
5 ms328 KiB
#include "interactive.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> guess(int n) {
	vector <int> ans(n+2);
	int base=ask(1);
	ans[0]=base;
	map<int,int>res;
	for(int i=0; i<7; ++i){
        vector<int>v;
        int bad=1;
        for(int x=2; x<=n; ++x) if((x>>i)&1) {v.push_back(x);bad=0;}
        if(bad) continue;
        vector<int>get=get_pairwise_xor(v);
        v.push_back(1);
        vector<int>GET=get_pairwise_xor(v);
        map<int,int>mp;
        for(int x:get) mp[x]++;
        for(int x:GET){
            if(mp[x]==0 && x!=0) res[x^base]|=(1<<i);
            mp[x]--;
        }
	}
	for(auto [x,y]:res){
        ans[y-1]=x;
	}
	return ans;
}
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