2019年8月16日
PAT甲级——A1102 Invert a Binary Tree
摘要： The following is from Max Howell @twitter: Now it's your turn to prove that YOU CAN invert a binary tree! Input Specification: Each input file contain 阅读全文
posted @ 2019-08-16 20:45 自由之翼Az 阅读(186) 评论(0) 推荐(0)
PAT甲级——A1101 Quick Sort
摘要： There is a classical process named partition in the famous quick sort algorithm. In this process we typically choose one element as the pivot. Then th 阅读全文
posted @ 2019-08-16 20:04 自由之翼Az 阅读(150) 评论(0) 推荐(0)
PAT甲级——A1100 Mars Numbers
摘要： People on Mars count their numbers with base 13: Zero on Earth is called "tret" on Mars. The numbers 1 to 12 on Earth is called "jan, feb, mar, apr, m 阅读全文
posted @ 2019-08-16 14:05 自由之翼Az 阅读(181) 评论(0) 推荐(0)
PAT甲级——A1099 Build A Binary Search Tree
摘要： A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes 阅读全文
posted @ 2019-08-16 10:39 自由之翼Az 阅读(177) 评论(0) 推荐(0)