原创 LeetCode103. Binary Tree Zigzag Level Order Traversal題解
1. 題目描述 Given a binary tree, return the zigzag level order traversal of its nodes’ values. (IE, from left to rig
2020-07-07 12:53:24
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原创 LeetCode406. Queue Reconstruction by Height題解
最近算法課講到了貪心算法，接下來的幾篇題解應該都會與貪心算法相關。 1. 題目描述 Suppose you have a random list of people standing in a queue. Each per
2020-07-07 12:53:24
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原创 LeetCode110.Balanced Binary Tree題解
1. 題目描述 Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree
2020-07-07 12:53:24
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原创 數媒筆記整理2
最近收拾資料，發現之前的數媒筆記只整理了一篇，這幾天陸續補上吧。 1. 題目：2D transformation, polygon clipping, viewport 1.1. Goal You are to write
2020-07-07 12:53:23
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原创 LeetCode101. Symmetric Tree題解
1. 題目描述 Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). 2. 樣例
2020-07-07 12:53:23
原创 LeetCode122. Best Time to Buy and Sell Stock II題解
今天討論一道讓我想的過於複雜的題目：一道有關股票買賣的問題。 1. 題目描述 Say you have an array for which the i th element is the price of a given
2020-07-07 12:53:23
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原创 LeetCode452. Minimum Number of Arrows to Burst Balloons題解
1. 題目描述 【翻譯過來】： 有若干個氣球，給出了它們的直徑兩個端點的座標（X軸），我們的工作是需要用一支箭來戳破氣球。例如兩個氣球的直徑分別是(1,6)和(2,8)，那麼我們就可以在x=6的座標處發射一支箭從而將它
2020-07-07 12:53:23
原创 數媒筆記整理4
1. 題目：Implement Gouraud Shading or Phong Shading based on hw3 1.1. Goal You are to write a program to read a se
2020-07-07 12:53:23
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原创 數媒筆記整理3
1. 題目：Implement an OpenGL-like 3D Rendering Pipeline 1.1. Goal You are to write a program to read a set of comm
2020-07-07 12:53:23
原创 LeetCode107. Binary Tree Level Order Traversal II題解
1. 題目描述 Given a binary tree, return the bottom-up level order traversal of its nodes’ values. (ie, from left to
2020-02-24 13:14:19
原创 LeetCode455. Assign Cookies題解
1. 題目描述 Assume you are an awesome parent and want to give your children some cookies. But, you should give each
2020-02-24 13:14:19
原创 LeetCode513. Find Bottom Left Tree Value題解
1. 題目描述 Given a binary tree, find the leftmost value in the last row of the tree. 2. 樣例 3. 分析 這道題的思路和Leet
2020-02-24 13:14:19
原创 LeetCode112.Path Sum題解
1. 題目描述 Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the
2020-02-24 13:14:19
原创 LeetCode515. Find Largest Value in Each Tree Row題解
1. 題目描述 You need to find the largest value in each row of a binary tree. 2. 樣例 3. 分析 題目的意思很明確，給了一棵樹，需要我輸出
2020-02-24 13:14:19