제출 #1006124

#제출 시각아이디문제언어결과실행 시간메모리
1006124HishamAlshehriCoins (IOI17_coins)C++17
0 / 100
6 ms1364 KiB
#include <bits/stdc++.h>
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips(64);
    int xorror = 0;
    for (int i = 0; i < 64; i++)
    {
        flips[i] = b[i];
        if (b[i])
            xorror ^= i;
    }
    xorror ^= c;
    flips[xorror] ^= 1;
    return flips;
}

int find_coin(vector<int> b) {
    int xorror = 0;
    for (int i = 0; i < 64; i++)
    {
        if (b[i])
            xorror ^= i;
    }
    return xorror;
}
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