kLiHz

#include <iostream>

#include <map>
#include <string>

// Assume Cow B in each line appeared before
class Solution {
public:
    enum class Relation {BEFORE, AFTER};
    enum class Zodiac {

kLiHz

Next to a great forest there lived a poor woodcutter with his wife and his two children. 
The boy's name was Hansel and the girl's name was Gretel. He had but little to eat, and 
once, when a great famine came to the land, he could no longer provide even their daily 
bread.

One evening as he was lying in bed worrying about his problems, he sighed and said to his 
wife, "What is to become of us? How can we feed our children when we have nothing for 
ourselves?"

"Man, do you know what?" answered the woman. "Early tomorrow morning we will take the two 

kLiHz

#include <iostream>
#include <chrono>

void print_I64(long long num) {
    // Try NOT using `if` statement, since it will make the program slower
    char str[32] = {0};
    short idx = 31;
    long long sign = num >> 63; // -1 for negative, 0 for positive
    // by doing this we assume that the spaces are filled with num's sign bit
    num ^= sign;