LeetCode

題目

Given an integer array nums, move all the even integers at the beginning of the array followed by all the odd integers.

題目

Given two strings s and t, return true if they are equal when both are typed into empty text editors. '#' means a backspace character.

題目

Given the root of a binary search tree, and an integer k, return the kth smallest value (1-indexed) of all the values of the nodes in the tree.

題目

Given the root of a binary search tree, rearrange the tree in in-order so that the leftmost node in the tree is now the root of the tree, and every node has no left child and only one right child.

題目

You are keeping score for a baseball game with strange rules. The game consists of several rounds, where the scores of past rounds may affect future rounds' scores.

題目

You are given an array of integers stones where stones[i] is the weight of the ith stone.

題目

Given a string s, return true if the s can be palindrome after deleting at most one character from it.

題目

Write a function that reverses a string. The input string is given as an array of characters s.

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