제출 #650127

#제출 시각아이디문제언어결과실행 시간메모리
650127blueCoins (IOI17_coins)C++17
100 / 100
12 ms1556 KiB
#include "coins.h"
#include <bits/stdc++.h>
using namespace std;

using vi = vector<int>;

vi coin_flips(vi b, int c) 
{
    int tot = 0;
    for(int i = 0; i < 64; i++)
        if(b[i])
            tot ^= i;

    int flip = c ^ tot;
    return {flip};
}

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