제출 #864477

#제출 시각아이디문제언어결과실행 시간메모리
864477dukkunCoins (IOI17_coins)C++14
0 / 100
7 ms1700 KiB
#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips(1);
    int x = c;
    for (int &u: b) {
        x ^= u;
    }
    flips[0] = x;
    return flips;
}

int find_coin(std::vector<int> b) {
    
    int ret = 0;

    for (int &u: b) {
        ret ^= u;
    }

    return ret;
}
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