Pirates Revisited
A slightly different version of the original pirates problem (read that one first to get all the rules). 6 pirates, […]
Logic Puzzles
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, Data Structures, Logic Puzzles
Dave’s on Fire
dave winer is stuck on a deserted island, with lots of trees, which is very thin and ten miles long
Logic Puzzles
Easy River Crossing
Three cannibals and three anthropologists have to cross a river. the boat they have is only big enough for two
Bit Manipulation, Logic Puzzles
Hard River Crossing
a disfunctional family has to cross the river. on one side of the river are a mom and 2 daughters,
Data Structures, Logic Puzzles, String Manipulation
Classic Weighing
this is a classic problem which i have heard many times before. this is the “harder” of the two problems,
Logic Puzzles, Math Problems
Monty Hall Problem
Another well known problem in probability is the Monty Hall problem. You are presented with three doors (door 1, door
Logic Puzzles
Screwy Pirates
A. first i would just like to say i am so glad jenna got voted off survivor. yuck, i couldn’t
Logic Puzzles
More Hat Puzzles
I buried four fishermen up to their necks in the sand on the beach at low tide for keeping their
Logic Puzzles
Coin on a Table
You die and the devil says he’ll let you go to heaven if you beat him in a game. the
Algorithms, Logic Puzzles, Math Problems
Heaven
A person dies, and arrives at the gate to heaven. there are three doors. one of them leads to heaven.
Brain Teasers, Logic Puzzles
Flipping Coins
Someone walks into your room and dumps a huge bag of quarters all over the floor. They spread them out
Logic Puzzles
Pennies
I challenge you to a game. we each get one penny and we flip them at the same time. (so
Brain Teasers, Data Structures, Logic Puzzles, Microsoft Interview Questions
Linked List
How does one find a loop in a singly linked list in O(n) time using constant memory? You cannot modify
Algorithms, Logic Puzzles, Math Problems
Coin Rolls
Every night, I dump all the change in my pocket into a big bucket. When I buy things, I never
Brain Teasers, Logic Puzzles
Painfully Easy
I flip a penny and a dime and hide the result from you. “one of the coins came up heads”,