Submission #344919

#	Time	Username	Problem	Language	Result	Execution time	Memory
344919		Rakhmand	Xoractive (IZhO19_xoractive)	C++14	100 / 100	8 ms	748 KiB

Xoractive

#include "interactive.h"
#include <set>
#include <map>
#include <iostream>

using namespace std;

int ans[110];

multiset<int> get(vector<int> v){
    vector<int> kek = get_pairwise_xor(v);
    multiset<int> ms;
    for(int i = 0; i < kek.size(); i++){
        ms.insert(kek[i]);
    }
    return ms;
}

vector<int> guess(int n) {
    ans[1] = ask(1);
    vector<int> pos[7];
    for(int i = 2; i <= n; i++){
        for(int j = 0; j < 7; j++){
            if(((1 << j) & i) > 0){
                pos[j].push_back(i);
            }
        }
    }
    vector<int> good[7];
    for(int i = 0; i < 7; i++){
        if(pos[i].size() == 0) continue;
        multiset<int> m1 = get(pos[i]);
        pos[i].push_back(1);
        multiset<int> m2 = get(pos[i]);
        m2.erase(m2.find(0));
        for(auto it : m1){
            m2.erase(m2.find(it));
        }
        for(auto it : m2) {
            good[i].push_back((it ^ ans[1]));
        }
    }
    map<int, int> mp;
    for(int i = 0; i < 7; i++){
        for(auto j : good[i]){
            mp[j] |= (1 << i);
        }
    }
    for(int i = 0; i < 7; i++){
        for(auto j : good[i]){
            ans[mp[j]] = j;
        }
    }
    vector<int> lol;
    for(int i = 1; i <= n; i++){
        lol.push_back(ans[i]);
    }
    return lol;
}

Compilation message (stderr)

Xoractive.cpp: In function 'std::multiset<int> get(std::vector<int>)':
Xoractive.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for(int i = 0; i < kek.size(); i++){
      |                    ~~^~~~~~~~~~~~

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