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By:
John Smith

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Array Strategies

Binary search,

Find maximum in sliding window,

Search rotated array

12
cards

Dynamic Programming Strategies

Largest sum subarray,

Maxsum subsequence nonadjacent el...,

Game scoring find the number of w...

39
cards

Linked List Strategies

Reverse a singly linked list,

Remove duplicates from a linked list,

Delete node with a given key

14
cards

Math & Stats Strategies

Find kth permutation,

Integer division,

Pythagorean triplets

15
cards

String Strategies

Reverse words in a sentence,

Remove duplicates,

Remove white spaces

7
cards

Tree Strategies

Check if two binary trees are ide...,

Write an in order iterator for a ...,

Iterative inorder traversal

16
cards

Stack & Queue Strategies

Stack using queues,

Queue using stacks,

Expression evaluation

4
cards

Graph Strategies

Clone a directed graph,

Minimum spanning tree,

Word chaining

3
cards

Back-tracking strategies

Boggle,

All possible braces,

Solve n queens problem

4
cards

Sliding Window Strategies

Maximum sum subarray of size k,

Smallest subarray with a given sum,

Longest substring with k distinct...

11
cards

Two-pointer strategies

Pair with target sum,

Remove duplicates,

Squaring a sorted array

12
cards

Fast & Slow Pointer Strategies

Linkedlist cycle,

Start of linkedlist cycle,

Happy number

7
cards

Merge Intervals Problems

Merge intervals,

Insert interval,

Intervals intersection

7
cards

Cyclic Sort Problems

Cyclic sort,

Find the missing number,

Find all missing numbers

8
cards

InPlace Reversal of LinkedList

Reverse a linkedlist,

Reverse a sub list,

Reverse every k element sub list

5
cards

Tree Breadth First Search Strategies

Binary tree level order traversal,

Reverse level order traversal,

Zigzag traversal

10
cards

Tree Depth First Search Strategies

Binary tree path sum,

All paths for a sum,

Sum of path numbers

7
cards

Two-Heap Problems

Find the median of a number stream,

Sliding window median,

Maximize capital

5
cards

Subset Problems

Subsets,

Subsets with duplicates,

Permutations

9
cards

Modified Binary Search Problems

Order agnostic binary search,

Ceiling of a number,

Next letter

10
cards

Top K elements problems

Top k numbers,

Kth smallest number,

K closest points to the origin

14
cards

K-way Merge Problems

Merge k sorted lists,

Kth smallest number in m sorted l...,

Kth smallest number in a sorted m...

5
cards

Topological Sort (Graph) Strategies

Topological Sort is used to find a linear ordering of elements that have dependencies on each other. For example, if event ‘B’ is dependent on event ‘A’, ‘A’ comes before ‘B’ in topological ordering.
This pattern defines an easy way to understand the technique for performing topological sorting of a set of elements and then solves a few problems using it.

7
cards

Matrix Strategies

Make columns and rows zeros,

Search in a matrix,

Closest meeting point

6
cards

ML Basics

Create a neuron from scratch

1
cards

Trie (Digital/Prefix tree) Strategies

Implement trie prefix tree,

Add and search word data structur...,

Word search ii

17
cards

Facebook Sample Questions

This is a sample of questions based on real-life ones from Facebook. This is not intended to be comprehensive (after all, the company intentionally switches up their questions to avoid memorization), but it should give you a good sense for the kind of concepts that are important to keep in mind.

11
cards

Google Sample Questions

Ratio finder

1
cards

coding interview patterns

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- 21 decks
- 825 flashcards
- 491 learners

Decks:
Ch 1 General Prefixes, Ch 1 General Suffixes, Ch 1 General Body Root Words, And more!