摘要：
In this Kata, you will be given a string that may have mixed uppercase and lowercase letters and your task is to convert that string to either lowerca 阅读全文
摘要：
Description: My grandfather always predicted how old people would get, and right before he passed away he revealed his secret! In honor of my grandfat 阅读全文
摘要：
Your task is to split the chocolate bar of given dimension n x m into small squares. Each square is of size 1x1 and unbreakable. Implement a function 阅读全文