제출 #710764

#제출 시각아이디문제언어결과실행 시간메모리
710764Spade1Coins (IOI17_coins)C++14
100 / 100
10 ms1608 KiB
#include "coins.h"
using namespace std;

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

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