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Algorithmic Paradigms

Brute Force Greedy Algorithms Divide and Conquer Dynamic Programming

Searching and Sorting

Selection Sort, Bubble Sort, and Insertion Sort

Time Complexities of Sorting Algorithms (Overview)

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 Array

Solution: Search in a Rotated Array

Challenge: Find the Median of Two Sorted Arrays

Solution: Find the Median of Two Sorted Arrays

Challenge: Find Duplicates in Array

Solution: Find Duplicates in Array

Challenge: Search in Sorted Matrix

Solution: Search in Sorted Matrix

Challenge: Count Element Occurrence

Solution: Count Element Occurrence

Challenge: Search Insert Position

Solution: Search Insert Position

Challenge: Sparse Search

Solution: Sparse Search

Challenge: Dutch National Flag Problem

Solution: Dutch National Flag Problem

Quiz on Sorting & Searching

Graph Algorithms

Introduction to Graph Algorithms and Implementation Challenge 1: Implement Breadth First Search Solution Review: Implement Breadth First Search Challenge 2: Implement Depth-First Search Solution Review: Implement Depth-First Search Challenge 3: Calculate the Number of Nodes in a Given Graph Level Solution: Number of Nodes in a Given Graph Level Challenge 4: Print the Transpose of a Graph Solution Review: Print the Transpose of a Graph Challenge 5: Count the Paths Between Two Nodes Solution Review: Count the Paths Between Two Nodes Challenge 6: Check if a Graph is Strongly Connected Solution Review: Check if a Graph is Strongly Connected Challenge 7: Print all the Connected Components in a Graph Solution Review: Print all the Connected Components of a Graph Challenge 8: Removing a Given Edge Solution Review: Removing an Edge Challenge 9: Check If Given Graph is Bipartite Solution Review: Check if a Given Graph is Bipartite Quiz on Graph Algorithms

Greedy Algorithms

What is a Greedy Approach?Problem 1: Make a Change Machine!Solution 1: Make Your own Change Machine!Problem 2: Connecting 'n' Pipes with Minimum Cost Solution 2: Connecting 'n' Pipes with Minimum Cost Problem 3: Find the Egyptian Fraction Solution 3: Find the Egyptian Fraction Problem 4: Minimum Number of Platforms Required for Train Station Solution 4: Minimum Number of Platforms Required for TrainStation Problem 7: Find the Largest Number Solution 7: Find the Largest Number Quick Quiz!

Dynamic Programming

Fibonacci Series Using Recursion 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 4: Longest Common Substring Solution Review: Longest Common Substring Challenge: Shortest Common Supersequence Solution Review: Shortest Common Supersequence Challenge 6: Longest Palindromic Subsequence Solution Review: Longest Palindromic Subsequence Challenge 7: The Coin Change Problem Solution Review: Coin Change Problem Challenge 8: Egg Dropping Problem Solution Review: Egg Dropping Problem Challenge 9: Strings Interleaving Solution Review: Strings Interleaving Challenge: Edit Distance Problem Solution Review: The Edit Distance Problem Quiz on Dynamic Programming

Divide and Conquer

Introduction to Divide and Conquer with Binary Search Pascal's Triangle Challenge 1: Euclidean Algorithm Solution Review 1: Euclidean Algorithm Challenge 2: Peak Element Solution Review 2: Peak Element Challenge 4: Missing Number in Sorted Array Solution Review 4: Missing Number in Sorted Array Challenge 5: Find the Closest Number Solution Review 5: Find the Closest Number Challenge 6: Shuffle Integers Solution Review 6: Shuffle Integers Challenge 7: Collect Coins in Minimum Steps Solution Review 7: Collect Coins in Minimum Steps Challenge 8: Merge a Number of Sorted Arrays Solution Review 8: Merge a Number of Sorted Arrays Challenge 9: Find the Floor and Ceiling of a Number Solution Review 9: Find the Floor and Ceil of a Number Challenge 10: Inversion Count in an Array Solution Review 10: Inversion Count in an Array Quiz on Divide and Conquer

Conclusion

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Untitled Masterpiece

Let's solve the very famous problem of Dutch national flag.

Problem statement

Implement a function that sorts an array of $0's$ , $1's$ ...