摘要:
Popular Products 描述 Given N lists of customer purchase, your task is to find the products that appear in all of the lists. A purchase list consists of 阅读全文
摘要:
Binary Watch 描述 Consider a binary watch with 5 binary digits to display hours (00 - 23) and 6 binary digits to display minutes (00 - 59). For example 阅读全文