제출 #318603

#제출 시각아이디문제언어결과실행 시간메모리
318603mihai145Coins (IOI17_coins)C++14
0 / 100
10 ms1716 KiB
#include "coins.h"

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

int find_coin(std::vector<int> b) {
    int x = 0;
    for(int i = 0; i < 63; i++)
        if(b[i]) x ^= i;
    return x;
}
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