Recursion & Backtracking Challenge
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UNIQUE CODING CHALLENGE

#T20DSAChallenge is a ⚡ 7-day learning + coding sprint on a key DSA topic. Everyday we unlock a set of 🔒 concept video + coding problem – just watch the video to learn the concept, and then tackle the challenge!

Day 1 : Generate Parentheses
Recursion
Problem
Difficulty: MediumSubmissions: 1193
Day 2 : Monkey Collision
Modular Exponentiation
Problem
Difficulty: MediumSubmissions: 744
Day 3 : The Spices Box
Backtracking with pruning
Problem
Difficulty: HardSubmissions: 562
Day 4 : N Queen with Max Score
Backtracking
Problem
Difficulty: HardSubmissions: 391
Day 5 : The Election Day Protocol
Recursion + Precomputation
Problem
Difficulty: HardSubmissions: 774
Day 6 : DNA Sequencing Comparability
Recursion
Problem
Difficulty: HardSubmissions: 314
Day 7 : Prime Ring
Backtracking with pruning
Problem
Difficulty: HardSubmissions: 383