Coin Problem
2 min read some of you may have easily solved the pill weighing problem posed here. If so, you are going to love […] Read article
Brain Teasers, Logic Puzzles
← techinterview
Logic Puzzles
Classic logic puzzles that challenge your reasoning abilities and creative thinking. From river crossing problems to complex constraint satisfaction, these puzzles develop the analytical mindset crucial for technical interviews.
Puzzle Categories:
Constraint satisfaction: Fox-chicken-grain, missionaries and cannibals
Information theory: Card tricks, encoding problems
Optimization: Minimum steps, optimal strategy
Combinatorics: Counting arrangements, permutations
Solution Approaches:
State space search (BFS/DFS)
Backward reasoning
Constraint elimination
Mathematical modeling
Companies: Google, Microsoft, Palantir, Dropbox frequently use logic puzzles to assess problem-solving skills.
Brain Teasers, Logic Puzzles
Railroad Bridge
3 min read A man needs to go through a train tunnel. He starts through the tunnel and when he gets 1/4 the Read article
Algorithms, Logic Puzzles
Switches
3 min read The warden meets with 23 new prisoners when they arrive. He tells them, “You may meet today and plan a Read article
Brain Teasers, Logic Puzzles
Yarr Maties
4 min read Five pirates discover a chest full of 100 gold coins. The pirates are ranked by their years of service, Pirate Read article
Logic Puzzles
The Rope Bridge
2 min read Four people need to cross a rickety rope bridge to get back to their camp at night. Unfortunately, they only Read article