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All LessonsFree Lessons (13)

Introduction

Who This Course Is For Learning Outcomes

Algorithmic Paradigms

Brute Force Greedy Algorithms Divide and Conquer Dynamic Programming

Asymptotic Analysis

Comparing Algorithms Example: Measuring Time Complexity - Single loop Example: Measuring Time Complexity - Nested Loop Introduction to Asymptotic Analysis and Big O Other Common Asymptotic Notations and Why Big O Trumps Them Useful Formulas Common Complexity Scenarios Challenge: Big O of Nested Loop With Addition Solution: Big O of Nested Loop With Addition Challenge: Big O of Nested Loop With Subtraction Solution: Big O of Nested Loop With Subtraction Challenge: Big O of Nested Loop With Multiplication Solution: Big O of Nested Loop With Multiplication Challenge: Nested Loop With Multiplication (Basic)Solution: Nested Loop With Multiplication (Basic)Challenge: Nested Loop With Multiplication (Intermediate)Solution: Nested Loop With Multiplication (Intermediate)Challenge: Nested Loop With Multiplication (Advanced)Solution: Nested Loop With Multiplication (Advanced)Challenge: Nested Loop With Multiplication (Pro)Solution: Nested Loop With Multiplication (Pro)Complexity Quiz: Test Your Understanding of Complexity

Sorting & Searching

Selection Sort, Bubble Sort, and Insertion Sort Merge Sort Quick Sort Overview of Sorting Algorithms Searching Algorithms Challenge: Find Two Numbers That Add Up to "n"Solution: Find Two Numbers That Add Up to "n"Challenge: Search in a Rotated List Solution: Search in a Rotated List Challenge: Group Anagrams Solution: Group Anagrams Challenge: Arrange a Binary List Solution: Arrange a Binary List Challenge: Find the Maximum Product of Two Integers in a List Solution: Find the Maximum Product of Two Integers in a List Challenge: Find Duplicates in a List With No Repetition Solution: Find Duplicates in a List With No Repetition Challenge: Search in a 2D List Solution: Search in a 2D List Challenge: Search Position Solution: Search Position Challenge: Dutch National Flag Problem Solution: Dutch National Flag Problem Quiz on Sorting & Searching

Graph Algorithms

Introduction to Graph Algorithms and Implementation

Challenge: Implement Breadth-First Graph Traversal

Solution: Breadth-First Graph Traversal

Challenge: Implement Depth-First Graph Traversal

Solution: Depth-First Graph Traversal

Challenge: Calculate the Number of Nodes in a Graph Level

Solution: Calculate the Number of Nodes in a Graph Level

Challenge: Transpose a Graph

Solution: Transpose a Graph

Challenge: Find All Paths Between Two Nodes

Solution: Find All Paths Between Two Nodes

Challenge: Check If a Graph is Strongly Connected

Solution: Check If a Graph is Strongly Connected

Challenge: Find All Connected Components in a Graph

Solution: Find All Connected Components of a Graph

Challenge: Remove an Edge

Solution: Remove an Edge

Challenge: Detect a Cycle in a Graph

Solution: Detect a Cycle in a Graph

Quiz on Graph Algorithms

Greedy Algorithms

Greedy Approach: A Deep Dive Challenge: Counting Money Solution: Counting Money Challenge: Connecting n Pipes With Minimum Cost Solution: Connecting n Pipes With Minimum Cost Challenge: Find the Egyptian Fraction's Denominators Solution: Find the Egyptian Fraction Challenge: Find the Minimum Platforms Required For a Station Solution: Find the Minimum Platforms Required For a Station Challenge: Find the Largest Number Possible Solution: Find the Largest Number Possible Quiz on Greedy Algorithms

Dynamic Programming

Calculating Fibonacci Numbers Introducing Dynamic Programming with Fibonacci Numbers Memoizing Fibonacci Numbers Tabulating Fibonacci Numbers Challenge: The 0/1 Knapsack Problem Solution: The 0/1 Knapsack Problem Challenge: Staircase Problem Solution: Staircase Problem Challenge: The Partition Problem Solution: The Partition Problem Challenge: Longest Common Substring Solution: Longest Common Substring Challenge: Shortest Common Supersequence(SCS)Solution: Shortest Common Supersequence(SCS)Challenge: Longest Palindromic Subsequence Solution: Longest Palindromic Subsequence Challenge: The Coin Change Problem Solution: The Coin Change Problem Challenge: Egg Dropping Problem Solution: Egg Dropping Problem Challenge: Strings Interleaving Solution: Strings Interleaving Challenge: Edit Distance Problem Solution: The Edit Distance Problem Quiz on Dynamic Programming

Divide and Conquer

Introduction to Divide and Conquer With Binary Search Pascal's Triangle Challenge: Euclidean Algorithm Solution: Euclidean Algorithm Challenge: Find the Peak Element Solution: Find the Peak Element Challenge: Maximum Sum Sublist of Size K Solution: Maximum Sum Sublist of Size K Challenge: Collect Coins in Minimum Steps Solution: Collect Coins in Minimum Steps Challenge: Find the Floor and Ceil of a Number in a Sorted List Solution: Find the Floor and Ceil of a Number in a Sorted List Challenge: Missing Number in a Sorted List Solution: Missing Number in a Sorted List Challenge: Find the Closest Number Solution: Find the Closest Number Challenge: Shuffle Integers Solution: Shuffle Integers Challenge: Inversion Count in a List Solution: Inversion Count in a List Quiz on Divide and Conquer

Conclusion

Wrapping Up Where to Go From Here

Practice Mock Interview

Algorithms for Coding Interviews in Python/

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Challenge: Transpose a Graph

Challenge: Transpose a Graph

Given a graph, find its transpose.

We'll cover the following...

Problem statement
Coding exercise

Problem statement

You have to implement a function which will take a graph as input and print its transpose.

Input

A graph

Output

Return a transpose of the given graph

Sample input

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