作者归档:在线疯狂

RSS feed of 在线疯狂

[LeetCode]Letter Case Permutation

题目描述:

LeetCode 784. Letter Case Permutation

Given a string S, we can transform every letter individually to be lowercase or uppercase to create another string.  Return a list of all possible strings we could create.

Examples:
Input: S = "a1b2"
Output ...

继续阅读

[LeetCode]Minimum Distance Between BST Nodes

题目描述:

LeetCode 783. Minimum Distance Between BST Nodes

Given a Binary Search Tree (BST) with the root node root, return the minimum difference between the values of any two different nodes in the tree.

Example :

Input: root = [4,2,6,1 ...

继续阅读

LeetCode Weekly Contest 70解题报告

LeetCode Weekly Contest 70是LeetCode举办的第七十四场正式周赛,共4道题目,比赛时长1.5小时。

比赛链接:https://leetcode.com/contest/leetcode-weekly-contest-70/

题解列表:

LeetCode 779. K-th Symbol in Grammar

LeetCode 776. Split BST

LeetCode 777. Swap Adjacent in LR String

LeetCode 778. Swim in Rising Water