2019年2月17日
#Leetcode# 657. Robot Return to Origin
摘要： https://leetcode.com/problems/robot-return-to-origin/ There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its 阅读全文
posted @ 2019-02-17 17:08 _Zlrrr 阅读(216) 评论(0) 推荐(0)
PAT 甲级 1110 Complete Binary Tree
摘要： https://pintia.cn/problem-sets/994805342720868352/problems/994805359372255232 Given a tree, you are supposed to tell if it is a complete binary tree. 阅读全文
posted @ 2019-02-17 15:39 _Zlrrr 阅读(137) 评论(0) 推荐(0)
PAT 甲级 1079 Total Sales of Supply Chain
摘要： https://pintia.cn/problem-sets/994805342720868352/problems/994805388447170560 A supply chain is a network of retailers（零售商）, distributors（经销商）, and su 阅读全文
posted @ 2019-02-17 14:46 _Zlrrr 阅读(371) 评论(0) 推荐(0)
PAT 甲级 1115 Counting Nodes in a BST
摘要： https://pintia.cn/problem-sets/994805342720868352/problems/994805355987451904 A Binary Search Tree (BST) is recursively defined as a binary tree which 阅读全文
posted @ 2019-02-17 14:28 _Zlrrr 阅读(280) 评论(0) 推荐(0)
PAT 甲级 1094 The Largest Generation
摘要： https://pintia.cn/problem-sets/994805342720868352/problems/994805372601090048 A family hierarchy is usually presented by a pedigree tree where all the 阅读全文
posted @ 2019-02-17 14:25 _Zlrrr 阅读(315) 评论(0) 推荐(0)