原创 LeetCode--- Path Sum III、Delete Node in a BST、Find Mode in Binary Search Tree
437. Path Sum III You are given a binary tree in which each node contains an integer value. Find the number of paths th
2020-06-24 11:21:30
原创 1到n！的和
sum = 0 shu = int(input("請輸入所求的一個數階乘的累加和： ")) for i in range(1, shu+1): s = 1 for j in range(2, i+1):
2020-06-24 11:21:30
原创 LeetCode--- Diameter of Binary Tree、Maximum Depth of N-ary Tree、Average of Levels in Binary Tree
543. Diameter of Binary Tree Given a binary tree, you need to compute the length of the diameter of the tree. The diame
2020-06-24 11:21:29
原创 LeetCode---Maximum Binary Tree、Second Minimum Node In a Binary Tree、Search in a Binary Search Tree
654. Maximum Binary Tree Given an integer array with no duplicates. A maximum tree building on this array is defined as
2020-06-24 11:21:29
2
原创 LeetCode---N-ary Tree Preorder Traversal、N-ary Tree Postorder Traversal、Merge Two Binary Trees
589. N-ary Tree Preorder Traversal Given an n-ary tree, return the preorder traversal of its nodes' values. For example
2020-06-24 11:21:29
5
原创 LeetCode---Arithmetic Slices、Partition Equal Subset Sum
413. Arithmetic Slices A sequence of number is called arithmetic if it consists of at least three elements and if the d
2019-08-25 14:00:24
2
原创 LeetCode--- Maximum Subarray、Unique Paths、Unique Paths II、Minimum Path Sum、Climbing Stairs
53. Maximum Subarray Given an integer array nums, find the contiguous subarray (containing at least one number) which h
2019-08-25 14:00:24
原创 LeetCode---Jump Game、Jump Game II、Gas Station、Candy、Wiggle Subsequence
55. Jump Game Given an array of non-negative integers, you are initially positioned at the first index of the array. Ea
2019-08-25 14:00:24
3
原创 LeetCode---Triangle、House Robber、House Robber II
120. Triangle Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent number
2019-08-25 14:00:24
1
原创 LeetCode---Perfect Squares、Longest Increasing Subsequence
279. Perfect Squares Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9,
2019-08-25 14:00:24
1
原创 LeetCode---Sum Root to Leaf Numbers、Binary Tree Preorder Traversal、Binary Tree Postorder Traversal
129. Sum Root to Leaf Numbers Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represe
2019-08-17 13:55:02
2
原创 LeetCode--- Sum of Left Leaves、N-ary Tree Level Order Traversal
404. Sum of Left Leaves Find the sum of all left leaves in a given binary tree. Example: 3 / \ 9 20 / \
2019-08-17 13:55:02
2
原创 LeetCode---Binary Gap、Self Dividing Numbers、Reach a Number、Rectangle Overlap
868. Binary Gap Given a positive integer N, find and return the longest distance between two consecutive 1's in the bin
2019-08-08 13:56:39
1
原创 LeetCode---Intersection of Two Arrays、 II、Sort Colors、Largest Perimeter Triangle
349. Intersection of Two Arrays Given two arrays, write a function to compute their intersection. Example 1: Input: nu
2019-08-06 13:55:03
2
原创 LeetCode--Arranging Coins
441. Arranging Coins You have a total of n coins that you want to form in a staircase shape, where every k-th row must
2019-08-02 13:55:15