< / >

摘要： You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 ston 阅读全文

摘要： Write a function that takes a string as input and returns the string reversed. 翻译：写一个函数，输入一个字符串，返回反转的字符串。 分析： 大水题，转为字符数组，然后直接用系统内置函数反转后再变为字符串，顺利AC。 没想 阅读全文