제출 #331994

#제출 시각아이디문제언어결과실행 시간메모리
331994wind_reaperCoins (IOI17_coins)C++17
100 / 100
14 ms1792 KiB
#include "coins.h"
#include <bits/stdc++.h>

using namespace std; 

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

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

    return x; 
}
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