제출 #474456

#제출 시각아이디문제언어결과실행 시간메모리
474456Carmel_Ab1Coins (IOI17_coins)C++17
100 / 100
13 ms1532 KiB
#include "coins.h"
#include "bits/stdc++.h"
using namespace std;
typedef vector<int>vi;

//#include "grader.cpp"
vi coin_flips(vi b, int c) {
    int x=0;
    for(int i=0; i<64; i++)
        x^=(i*b[i]);
    return vi(1,c^x);
}

int find_coin(vi b) {
    int ans=0;
    for(int i=0; i<64; i++)
        ans^=(b[i]*i);
    return ans;
}
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