Submission #471692

#	Time	Username	Problem	Language	Result	Execution time	Memory
471692		nickmet2004	Xoractive (IZhO19_xoractive)	C++11	Compilation error	0 ms	0 KiB

Xoractive

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

Compilation message (stderr)

Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:20:21: error: 'ans' was not declared in this scope; did you mean 'abs'?
   20 |     for(auto x : Z) ans[x.second] = x.first;
      |                     ^~~
      |                     abs