제출 #829571

#제출 시각아이디문제언어결과실행 시간메모리
829571haxormanCoins (IOI17_coins)C++14
100 / 100
9 ms1444 KiB
#include <bits/stdc++.h>
#include "coins.h"
using namespace std;

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

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

    return tot;
}
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