제출 #920471

#제출 시각아이디문제언어결과실행 시간메모리
920471aykhnCoins (IOI17_coins)C++17
100 / 100
9 ms1956 KiB
#include <bits/stdc++.h>
#include "coins.h"
// author: aykhn
using namespace std;
 
std::vector<int> coin_flips(std::vector<int> b, int c) {
    int a = c;
    for(int i = 0; i < 64; i++){
        if(b[i]) a ^= i;
    }
    return vector<int>() = {a};
}
 
int find_coin(std::vector<int> b) {
    int a = 0;
    for(int i = 0; i < 64; i++){
        if(b[i]) a ^= i;
    }
    return a;
}
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