제출 #1141524

#제출 시각아이디문제언어결과실행 시간메모리
11415241anh6Coins (IOI17_coins)C++20
100 / 100
9 ms584 KiB
#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips;
    int xd = c;
    for(int i = 0; i < 64; i++)
        if(b[i])
            xd ^= i;
    flips.push_back(xd);
    return flips;
}

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