제출 #1219133

#제출 시각아이디문제언어결과실행 시간메모리
1219133takoshanavaCoins (IOI17_coins)C++20
0 / 100
5 ms584 KiB
#include <bits/stdc++.h>
#include "coins.h"
//#define int long long 
#define pb push_back
#define fs first
#define sc second
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
    int x = 0;
    for(int i = 0; i <= 63; i++){
        if(b[i] == 1) x ^= i;
    }

    int y = c ^ x;
    b[y] ^= 1;
    return b;
}

int find_coin(vector<int> b){
    int y = 0;
    for(int i = 0; i <= 63; i++){
        if(b[i] == 1) y^= i;
    }
    return y;
}
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