CSES Tower of Hanoi Explained | Why Recursion Works (With Recursion Tree)

In this video, we solve the Tower of Hanoi problem from CSES by focusing on why recursion is the natural and correct approach. Instead of jumping straight to code, we build the intuition step by step: Start with n = 1 to understand the base case Extend the idea to n = 2, then n = 3 Observe the repeating pattern that leads to recursion After coding the solution, I also draw and explain the recursion tree for n = 3, making it clear how the function calls expand and return. This video is perfect if recursion feels like “magic” to you and you want to actually understand it. What You’ll Learn: Why Tower of Hanoi is recursive by nature How the base case and recursive calls connect Step-by-step intuition from n = 1 → n = 3 Recursion tree visualization for better clarity Tags / Hashtags: #CSES #TowerOfHanoi #Recursion #DSA #CompetitiveProgramming #RecursionTree