摘要: 原题链接在这里:https://leetcode.com/problems/robot-room-cleaner/ 题目: Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or 阅读全文
posted @ 2019-12-12 13:11 Dylan_Java_NYC 阅读(446) 评论(0) 推荐(0)
摘要: 原题链接在这里:https://leetcode.com/problems/valid-palindrome-iii/ 题目: Given a string s and an integer k, find out if the given string is a K-Palindrome or n 阅读全文
posted @ 2019-12-12 11:38 Dylan_Java_NYC 阅读(1604) 评论(0) 推荐(0)
摘要: 原题链接在这里:https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/ 题目: Given a string S of '(' and ')' parentheses, we add the minimum numbe 阅读全文
posted @ 2019-12-12 08:24 Dylan_Java_NYC 阅读(274) 评论(0) 推荐(0)
摘要: 原题链接在这里:https://leetcode.com/problems/range-sum-of-bst/ 题目: Given the root node of a binary search tree, return the sum of values of all nodes with va 阅读全文
posted @ 2019-12-12 08:00 Dylan_Java_NYC 阅读(503) 评论(0) 推荐(0)