Submission #471678

#	Time	Username	Problem	Language	Result	Execution time	Memory
471678		nickmet2004	Xoractive (IZhO19_xoractive)	C++11	0 / 100	4 ms	340 KiB

Xoractive

#include<bits/stdc++.h>
#include "interactive.h"
using namespace std;
vector<int> guess(int n){
    int a = ask(1);
    vector<int> X , Y;
    map<int , int> Z;
    vector<int> ans;
    ans.resize(n);
    for(int i = 0; i< 7; ++i){
        for(int k = 2; k <= n; ++k){
            if(k>>i&1)X.emplace_back(k);
        }
        Y = X;
        Y.emplace_back(1);
        X = get_pairwise_xor(X);
        Y = get_pairwise_xor(Y);
        map<int , int> A;
        for(int x : X) A[x]=1;
        for(int x : Y){
            if(A[x] != 1) Z[x^a] += 1 << i;
        }
        X.clear();
        Y.clear();
    }
    for(auto x : Z) ans[x.second-1] = x.first;
    return ans;
}

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