\94. Binary Tree Inorder Traversal

Given a binary tree, return the inorder traversal of its nodes’ values.

Example:

\2. Add Two Numbers

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.

1. The Keras ImageDataGenerator class is not an “additive” operation. Instead, the ImageDataGenerator class accepts the original data, randomly transforms it, and returns only the NEW, transformed data.

2. There are three types of data augmentation while training deep neural networks:

a. Dataset generator and data expansion via data augmentation. (less common)

字符串与字节

python 3 中只有一种能保存文本信息的数据类型——str，它是不可变序列，保存的是Unicode code point。