摘要: 题目如下: Given n orders, each order consist in pickup and delivery services. Count all valid pickup/delivery possible sequences such that delivery(i) is 阅读全文
posted @ 2020-02-23 15:18 seyjs 阅读(380) 评论(0) 推荐(0)
摘要: 题目如下: There is a sale in a supermarket, there will be a discount every n customer.There are some products in the supermarket where the id of the i-th  阅读全文
posted @ 2020-02-23 15:09 seyjs 阅读(300) 评论(0) 推荐(0)
摘要: 题目如下: Given an integer array arr. You have to sort the integers in the array in ascending order by the number of 1's in their binary representation an 阅读全文
posted @ 2020-02-23 15:07 seyjs 阅读(378) 评论(0) 推荐(0)
摘要: 题目如下: Given an array of integers target. From a starting array, A consisting of all 1's, you may perform the following procedure : let x be the sum of 阅读全文
posted @ 2020-02-23 15:06 seyjs 阅读(295) 评论(0) 推荐(0)
摘要: 题目如下: Implement the class ProductOfNumbers that supports two methods: 1. add(int num) Adds the number num to the back of the current list of numbers. 阅读全文
posted @ 2020-02-23 15:01 seyjs 阅读(307) 评论(0) 推荐(0)