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You are given an array `prices` where `prices[i]` is the price of a given stock on the `ith` day.

茅檐长扫净无苔，花木成畦手自栽。

世皆称孟尝君能得士，士以故归之，而卒赖其力以脱于虎豹之秦。

You are given a **perfect binary tree** where all leaves are on the same level, and every parent has two children.

Given an integer `numRows`, return the first numRows of **Pascal's triangle**.

Given an integer array `nums` where the elements are sorted in **ascending order**, convert it to a **height-balanced** binary search tree.

I wish that blasted baby would stop crying!

The static method `Object.