摘要：
Problem:Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get ... 阅读全文
摘要：
Problem:Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and opera... 阅读全文
摘要：
Problem:Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher's h-index.Ac... 阅读全文