Submission #336406

#	Time	Username	Problem	Language	Result	Execution time	Memory
336406		Kerim	Xoractive (IZhO19_xoractive)	C++17	100 / 100	6 ms	384 KiB

Xoractive

#include "interactive.h"
#include "bits/stdc++.h"
#define MAXN 100009
#define INF 1000000007
#define mp(x,y) make_pair(x,y)
#define all(v) v.begin(),v.end()
#define pb(x) push_back(x)
#define wr cout<<"----------------"<<endl;
#define ppb() pop_back()
#define tr(ii,c) for(__typeof((c).begin()) ii=(c).begin();ii!=(c).end();ii++)
#define ff first
#define ss second
#define my_little_dodge 46
#define debug(x)  cerr<< #x <<" = "<< x<<endl;
using namespace std;

map<int,int>res,pm;
void add(vector<int>x){
	tr(it,x)
		pm[*it]++;	
}
void rem(vector<int>x){
	tr(it,x)
		pm[*it]--;	
}
vector<int> guess(int n) {
	vector<int>ans(n),tmp;ans[0]=ask(1);
	for(int j=0;(1<<j)<=n;j++){
		pm.clear();tmp.clear();
		for(int i=2;i<=n;i++)
			if(i>>j&1)
				tmp.pb(i);
		rem(get_pairwise_xor(tmp));
		tmp.pb(1);
		add(get_pairwise_xor(tmp));
		tr(it,pm)
			if(it->ss>=2)
				res[it->ff^ans[0]]^=(1<<j);
	}
	tr(it,res)
		ans[it->ss-1]=it->ff;
	return ans;
}

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