你想开发游戏还是改变世界？
Given n balloons, indexed from 0 to n-1. Each balloon is painted with a number on it represented by array nums. You are asked to burst all the balloons. If the you burst balloon i you will get nums[left] * nums[i] * nums[right] coins. Here left and rightare adjacent indices of i. After the burst, the left and right then becomes adjacent.
On a 2x3 board, there are 5 tiles represented by the integers 1 through 5, and an empty square represented by 0.
A move consists of choosing 0 and a 4-directionally adjacent number and swapping it.
The state of the board is solved if and only if the board is [[1,2,3],[4,5,0]].
Given a puzzle board, return the least number of moves required so that the state of the board is solved. If it is impossible for the state of the board to be solved, return -1.
LeetCode#108 Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.
【中文版】第五课：带纹理的立方体
【英文版】Tutorial 5 : A Textured Cube
感觉自己学的好慢啊。
纹理（Texture），在计算机图形学中是把存储在内存里的位图包裹到3D渲染物体的表面。 纹理贴图给物体提供了丰富的细节，用简单的方式模拟出了复杂的外观。 一个图像（纹理）被贴(映射)到场景中的一个简单形体上，就像印花贴到一个平面上一样。