제출 #1316959

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1316959		spetr	Machine (IOI24_machine)	C++20	10 / 100	135 ms	436 KiB

machine

#include <bits/stdc++.h>
#include "machine.h"

using namespace std;

#define ll long long
const ll mmod = 998244353;  
#define vl vector<long long>
#define vll vector<vector<long long>>
#define pl pair<long long, long long>
#define vb vector<bool>

std::vector<int> find_permutation(int N){
    vector<int> cisla;
    for (ll i = 0; i < N; i++){
        cisla.push_back(i);
    }

    vector<int> p = use_machine(cisla);
    int x;
    for (x = 0; x <= 255; x++){
        set<int> px;
        for (ll i = 0; i < N; i++){
            px.insert(p[i]^x);
        }

        bool ok = true;
        for (ll i = 0; i < N; i++){
            auto it = px.find(cisla[i]);
            if (it == px.end()){
                ok = false;
            }
        }

        if (ok){
            break;
        }
    }
    for (ll i = 0; i < N; i++){
        p[i] ^= x;
    }
    return p;

}

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