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Data Structures & Algorithms In Go

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Who Should Take this Course and Why?

Time Complexity

Introduction and Asymptotic Analysis Big-O, Omega and Theta Notations Complexity Analysis of Algorithms Time Complexity Order Deriving an Algorithm's Runtime Function Examples Related to Time Complexities Master Theorem Master Theorem Examples Quiz

Arrays

Challenge: Sum Array Solution Review: Sum Array Challenge: Sequential Search Solution Review: Sequential Search Challenge: Binary Search Solution Review: Binary Search Challenge: Finding the Largest Sum Subarray Solution Review: Finding the Largest Sum Subarray Challenge: Rotating an Array by k Positions Solution Review: Rotating an Array by k Positions Challenge: Array Waveform Solution Review: Array Waveform Challenge: Index Array Solution Review: Index Array Challenge: Sorting From 1 to n Solution Review: Sorting From 1 to n Challenge: Smallest Positive Missing Number Solution Review: Smallest Positive Missing Number Challenge: Maximum, Minimum Array Solution Review: Maximum, Minimum Array Challenge: Array Index Maximum Difference Solution Review: Array Index Maximum Difference Quiz: Arrays

Recursive Functions

Recursive Functions Challenge: Factorial Solution Review: Factorial Challenge: Print Base 16 Integers Solution Review: Print Base 16 Integers Challenge: Greatest Common Divisor Solution Review: Greatest Common Divisor Challenge: Fibonacci Numbers Solution Review: Fibonacci Numbers Challenge: All Permutations of an Integer List Solution Review: All Permutations of an Integer List Challenge: Tower of Hanoi Solution Review: Tower of Hanoi Quiz: Recursion

Approaches to Solve Algorithm Design Problems

Introduction and Constraints Idea Generation Complexities, Coding, and Testing Example and Summary

Data Structures in Go

Abstract Data Type Go Collection Framework Stack Queue Tree Priority Queue / Heap Hash-Table Dictionary Set and Counter Symbol Table Graph

Sorting

Introduction Sorting Algorithm Bubble Sort Modified Bubble Sort Insertion Sort Selection Sort Merge Sort Quick Sort Quick Select Count Sort External Sort (External Merge-Sort)Stable Sort Choosing the Best Sorting Algorithm Challenge: Partitioning of 0s and 1s Solution Review: Partitioning of 0s and 1s Challenge: Partitioning of 0s, 1s, and 2s Solution Review: Partitioning of 0s, 1s and 2s

Stack

Introduction to Stack The Stack Abstract Data Type Challenge: Stack Using Array Solution Review: Stack Using Array Challenge: Stack Using Linked List Solution Review: Stack Using Linked List System Stack and Method Calls Challenge: Sorted Insert Solution Review: Sorted Insert Challenge: Sort Stack Solution Review: Sort Stack Challenge: Bottom Insert Solution Review: Bottom Insert Challenge: Reverse Stack Solution Review: Reverse Stack Challenge: Reverse k Elements in a Stack Solution Review: Reverse k Element in a Stack Challenge: Balanced Parentheses Solution Review: Balanced Parenthesis Challenge: Min Stack Solution Review: Min Stack Challenge: Max Depth Parenthesis Solution Review: Max Depth Parenthesis Challenge: Longest Continuous Balanced Parenthesis Solution Review: Longest Continuous Balanced Parenthesis Challenge: Reverse Parenthesis Solution Review: Reverse Parentheses Challenge: Find Duplicate Parentheses Solution Review: Find Duplicate Parenthesis Challenge: Print Parenthesis Number Solution Review: Print Parentheses Number Infix, Prefix, and Postfix Expressions Challenge: Infix-to-Postfix Conversion Solution Review: Infix-to-Postfix Conversion Challenge: Infix-to-Prefix Conversion Solution Review: Infix-to-Prefix Conversion

Queue

Introduction to Queue Queue Implementation Using an Array Queue Implementation Using a LinkedList Queue Implementation Using Circular Linked List Queue Implementation Using Doubly Linked List Challenge: Queue Using Stack Solution Review: Queue Using Stack Challenge: Reverse Queue Solution Review: Reverse Queue Challenge: Reverse k Elements in a Queue Solution Review: Reverse k Elements in a Queue

Tree

Introduction to Tree Types of Trees Introduction to Binary Trees Challenge: Create a Complete Binary Tree Solution Review: Create a Complete Binary Tree Challenge: Print Pre-Order Traversal Solution Review: Print Pre-Order Traversal Challenge: Print Post-order Traversal Solution Review: Print Post-order Traversal Challenge: Print In-order Traversal Solution Review: Print In-Order Traversal Challenge: Print level-order Traversal Solution Review: Print Level-order Traversal Challenge: Print Depth First Without Recursion Solution Review: Print Depth First Without Using the Recursion Challenge: Print Level Order Line by Line Using Two Queues Solution Review: Print Level Order Line by Line Using Two Queues Challenge: Print a Tree in Level-order Line by Line Using a Queue Solution Review: Print Level Order Line by Line Using One Queue Challenge: Print Spiral Tree Solution Review: Print Spiral Tree Challenge: nth Pre-order Solution Review: nth Pre-Order Challenge: nth Post-order Solution Review: nth Post-Order Challenge: nth In-Order Solution Review: nth In-Order Challenge: Print All the Paths Solution Review: Print All the Paths Challenge: Number of Elements Solution Review: Number of Elements Challenge: Sum of All Nodes in a Binary Tree Solution Review: Sum of All Nodes in a Binary Tree Challenge: Find Number of Leaf Nodes Solution Review: Find Number of Leaf Nodes Challenge: Number of Full Nodes in a Binary Tree Solution Review: Number of Full Nodes in a Binary Tree Challenge: Search Value in a Binary Tree Solution Review: Search Value in a Binary Tree Challenge: Find Max in Binary Tree Solution Review: Find Max in Binary Tree Challenge: Tree Depth Solution Review: Tree Depth Challenge: Identical Trees Solution Review: Identical Trees Challenge: Copy Tree Solution Review: Copy Tree Challenge: Copy Mirror Tree Solution Review: Copy Mirror Tree Challenge: Free Tree Solution Review: Free Tree Challenge: Check Completeness of Tree Using Queue Solution Review: Check Completeness of Tree Using Queue Challenge: Check Completeness of Tree Using Recursion Solution Review: Check Completeness of Tree using Recursion Challenge: Is Tree a Heap?Solution Review: Is Tree a Heap Challenge: Tree to List Conversion using Recursion Solution Review: Tree to List Conversion using Recursion

Binary Search Tree

Introduction to a Binary Search Tree (BST)

Challenge: Create a Binary Search Tree From the Sorted List

Solution Review: Create a Binary Search Tree From the Sorted List

Challenge: Insertion

Solution Review: Insertion

Challenge: Find Node

Solution Review: Find Node

Challenge: Find Min

Solution Review: Find Min

Challenge: Find Max

Solution Review: Find Max

Challenge: Is It a BST?

Solution Review: Is It a BST?

Challenge: Delete Node

Solution Review: Delete Node

Challenge: Least Common Ancestor

Solution Review: Least Common Ancestor

Challenge: Print Tree Nodes within a Range

Solution Review: Print Tree Nodes within a Range

Challenge: Trim the Tree Nodes Outside Range

Solution Review: Trim the Tree Nodes Outside Range

Challenge: Find Ceil and Floor Values in a BST

Solution Review: Find Ceil and Floor Values in a BST

Challenge: Is It a BST Array?

Solution Review: Is It a BST Array?

Solution Review: Find Min

Let’s take a detailed look at the previous challenge’s solution.

We'll cover the following

Solution
Solution code
Explanation

Solution

In a BST, the leftmost child of the tree will be the node with the minimum value. We will iteratively traverse the left subtree until we hit the leaf node as shown in the slide below:

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