Category: IT

Proofs by Contradiction — Proof Techniques in Theory of Computation

⭐ What Is a Proof by Contradiction? (Simple Words) A proof by contradiction works like this: It’s like pulling a

⭐ What Is a Nonconstructive Proof? A nonconstructive proof demonstrates that something exists without directly building it. You don’t produce:

⭐ What Is a Constructive Proof? (In Simple Words) A constructive proof shows something exists by explicitly building it. So

⭐ What Is a Direct Proof? A direct proof is a method where you: It’s like someone tells you: “If

🌐 What is a Spanning Tree? Take a connected graph (a set of points joined by lines).A spanning tree is:

🌉 What Is Graph Traversal? Imagine you’re exploring a new city.You start from one place and slowly move to nearby

What Is a Linked Representation? In this method, the graph is stored using linked lists. For each vertex, we create

Shortest Path Algorithm Imagine you’re standing in a new city with several streets connecting different places.You want to reach your

Warshall’s Algorithm Warshall’s Algorithm is a neat trick that answers this question for every pair of vertices in a graph.

Path Matrix When you start learning graphs, you meet many new terms — adjacency matrix, incidence matrix, degree, and so