Submission #841512

#	Time	Username	Problem	Language	Result	Execution time	Memory
841512		Elvin_Fritl	Xoractive (IZhO19_xoractive)	C++17	6 / 100	4 ms	464 KiB

Xoractive

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

    #include "interactive.h"


vector<int> guess(int n)
{

	int eded = ask(1);
	map<int,int>mm;
	for(int mask=0;mask<7;mask++)
    {
        vector<int>v;
        for(int i=2;i<=n;i++)
        {
            if(i&(1<<mask)){
                v.push_back(i);
            }
        }
        if(v.size() == 0)
        {
            continue;
        }
        vector<int> fi = get_pairwise_xor(v);
        v.push_back(1);
        vector<int> se = get_pairwise_xor(v);
        map<int,int> m;
        for(int i:fi)
        {
            m[i]--;
        }
        for(int i:se)
        {
            m[i]++;
        }
        vector<int>res;
        for(int i=0;i<se.size();i++){
            if(m[se[i]] > 0){
                mm[se[i]^eded] |= (1<<mask);
            }
        }
	}
	vector<int>res(n);
	res[0] = eded;
	for(auto [x,i]:mm){
        assert(i > 0);
        res[i-1] = x;
	}
	return res;

}

Compilation message (stderr)

Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for(int i=0;i<se.size();i++){
      |                     ~^~~~~~~~~~

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