原題地址:https://oj.leetcode.com/problems/add-binary/ 題意: Given two binary strings, return their sum (also a binary string). For example,a = "11"b ...
Given two binary strings, return their sum also a binary string . For example,a b Return . 這題用數組來做可能更簡單,但考慮到可能面試的時候要求不能開額外的數組,就只能對string操作了。最主要的是把進位這部分寫對。 ...
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原題地址:https://oj.leetcode.com/problems/add-binary/ 題意: Given two binary strings, return their sum (also a binary string). For example,a = "11"b ...
題目: Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Return "100". 題解: 二進制加法都是從最低位(從右加到左)。所以對 ...
Add Binary Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100". 先進行對齊操作,然后從右往左逐位相加,注意進位 ...
Given two binary strings, return their sum (also a binary string). The input strings are both non-empty and contains only characters 1 or 0. ...
Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100". 二進制數相加,並且保存在string中,要注意的是如何將string ...
問題:給一個二叉樹,寫一個算法判斷這個樹是不是balanced。 Solution #1. 第一次遇到這個問題時我的解法,如下: 寫了一個getDepth()函數,訪問每個節點都要調用一次這個函數。這個Solution也通過了leetcode的驗證程序,但是后來想了想,I ...
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which ...
Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node ...