#Algorithms

24 questions

What is an algorithm?Algorithms#algorithmsJunior
How does binary search work, and what does it require?Algorithms#searchingJunior
What is recursion?Algorithms#algorithmsJunior
Iteration vs recursion — what are the trade-offs?Algorithms#algorithmsJunior
What is the two-pointer technique?Algorithms#algorithmsJunior
What is the sliding-window technique?Algorithms#algorithmsJunior
What is brute force, and when is it acceptable?Algorithms#algorithmsJunior
How does merge sort work?Algorithms#sortingMiddle
How does quicksort work, and what is its worst case?Algorithms#sortingMiddle
How does heap sort work?Algorithms#sortingMiddle
How do hash maps optimize algorithms?Algorithms#algorithmsMiddle
What is the divide-and-conquer paradigm?Algorithms#algorithmsMiddle
What are greedy algorithms, and when do they work?Algorithms#algorithmsMiddle
What is backtracking?Algorithms#algorithmsMiddle
What is a prefix sum, and how does it speed up range queries?Algorithms#algorithmsMiddle
How do you detect a cycle with Floyd's tortoise and hare?Algorithms#algorithmsMiddle
What is dynamic programming (memoization vs tabulation)?Algorithms#dynamic-programmingSenior
When does dynamic programming apply versus greedy?Algorithms#dynamic-programmingSenior
How do Dijkstra and Bellman-Ford find shortest paths?Algorithms#graphsSenior
What is topological sorting?Algorithms#graphsSenior
How do Kruskal and Prim build a minimum spanning tree?Algorithms#graphsSenior
What is union-find and where is it used?Algorithms#graphsSenior
What are common bit-manipulation tricks?Algorithms#algorithmsSenior
What is a good strategy for approaching coding-interview problems?Algorithms#algorithmsSenior