CareerCup

13.1 Write a method to print the last K lines of an input file using C++. 这道题让我们用C++来打印一个输入文本的最后K行，最直接的方法是先读入所有的数据，统计文本的总行数，然后再遍历一遍打印出最后K行...

【称号】 原文： 1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only o...

9.6 Implement an algorithm to print all valid (e.g., properly opened and closed) combinations of n-pairs of parentheses.EXAMPLEInput: 3Output: ((())), (()()), (())(), ()(()), ()()() LeetCode上的原...

8.9 Explain the data structures and algorithms that you would use to design an in-memory file system. Illustrate with an example in code where possible. 这道题让我们设计一个内存文件系统，咋一听感觉...