제출 #911008

#제출 시각아이디문제언어결과실행 시간메모리
91100812345678Coins (IOI17_coins)C++17
100 / 100
10 ms1956 KiB
#include "coins.h"
#include <bits/stdc++.h>

using namespace std;

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

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