제출 #1093595

#제출 시각아이디문제언어결과실행 시간메모리
1093595IrateCoins (IOI17_coins)C++17
100 / 100
7 ms1704 KiB
#include "coins.h"

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

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