摘要：
题目：Given an array of integers, every element appears three times except for one, which appears exactly once. Find that single one. 题意及分析：找出数组中出现一次的数，其 阅读全文
摘要：
题目：Given an array of integers, every element appears twice except for one. Find that single one. 题意及分析：一个数组中，有一个数只出现了一次，其他的出现了两次。要求给出只出现一次的数。这道题，最简单的方 阅读全文
摘要：
题目：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. Accord 阅读全文