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Storage Scalability

Design Cache Amazon Facebook Google Ola Cabs

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Arrays

Kth Row of Pascal's Triangle Simulation array Google

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Rotate Matrix Arrangement Google Facebook Amazon Zoho

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Merge Intervals Value ranges Google Amazon

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Merge Overlapping Intervals Value ranges Google Amazon Directi Fab

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Add One To Number Array Math Google Microsoft

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N/3 Repeat Number Missing / Repeated number Google

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Pascal Triangle Simulation array Google Amazon

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Max Distance Sorting Google Amazon Microsoft

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Max Non Negative SubArray Simulation array Google

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Wave Array Sorting Google Adobe Amazon Zoho

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Max Min Value ranges Google Divide and conquer

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System Design Concepts

Design Messenger Amazon Amazon Lab126 Facebook Google Twitter

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Design Search Typeahead Facebook Google

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Math

Grid Unique Paths Combinatorics Google Amazon Microsoft Adobe

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Greatest Common Divisor Number theory NetApp Google TCS

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Sum of pairwise Hamming Distance Adhoc Google

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Next Smallest Palindrome! Digit Op Google grofers Math

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Descriptive Statistics

Median over mean Distribution Analysis: Univariate Google distributions

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Binary Search

Median of Array Sort modification Amazon VMWare Google Microsoft Goldman Sachs Trifacta Hike

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Search for a Range Simple binary search Google Microsoft Shopee

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Implement Power Function Search step simulation Google LinkedIn

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Rotated Sorted Array Search Sort modification Facebook Google Microsoft Amazon

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Allocate Books Search answer Google Flipkart

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Painter's Partition Problem Search answer Google Codenation Amazon

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Find a peak element Google

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Strings

Longest Common Prefix string Simulation Google

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Multiply Strings String math Microsoft Google

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Justified Text Pretty print LinkedIn Google Directi

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Minimum Parantheses! string Tricks Google strings

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Bit Manipulation

Single Number II Bit array Google Amazon

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Different Bits Sum Pairwise Bit play Google Zenefits

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Two Pointers

Intersection Of Sorted Arrays Multiple arrays Facebook Google

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Remove Duplicates from Sorted Array Inplace Update United Healthgroup Amazon Google Microsoft Expedia

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Array 3 Pointers Tricks Google Microsoft Yahoo Facebook

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Container With Most Water Tricks Facebook Google Amazon Adobe

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Linked Lists

Sort List List sort Google Zenefits

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Insertion Sort List List sort Microsoft Google

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Stacks And Queues

Evaluate Expression Stack math Yahoo Google Facebook

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Largest Rectangle in Histogram cleverstack Google Facebook Amazon OLX Group

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Sliding Window Maximum Queue Google Chronus Walmart labs Amazon Microsoft

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Balanced Parantheses! Stack simple Amazon Google stack

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Backtracking

All Unique Permutations Microsoft Facebook Google

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Permutations Permutations Microsoft Adobe Google

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NQueens Game solving Qualcomm Google Amazon

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Palindrome Partitioning Bruteforce builder Amazon Google

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Hashing

Window String Hashing two pointer Google Directi Flipkart Ola Zenefits

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Longest Consecutive Sequence Amazon Google Directi Flipkart Tower Research Capital Uber Technologies Inc

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4 Sum Hash Search Amazon Google

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Points on the Straight Line Maths and hashing Google Amazon InMobi

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2 Sum Hash Search Facebook Amazon Google Microsoft

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Valid Sudoku Hash Search Google Amazon

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Heaps And Maps

Merge K Sorted Lists heap Flipkart Amazon Google

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Tree Data Structure

Least Common Ancestor Tree search Facebook Adobe Microsoft Amazon Google

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Sum Root to Leaf Numbers Root to leaf Google Microsoft

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Order of People Heights Segment Tree Google

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Shortest Unique Prefix Trie Google

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Invert the Binary Tree Inplace Change Google

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Dynamic Programming

Max Rectangle in Binary Matrix Matrix DP Google Microsoft

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Distinct Subsequences 2D string DP Google

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Palindrome Partitioning II Breaking words Amazon Google Tower Research Capital

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Min Jumps Array Greedy OR DP Amazon Ebay Google

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Edit Distance 2D string DP Google LinkedIn Microsoft Amazon Flipkart Ola PubMatic

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Word Break Breaking words IBM Google

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Regular Expression II 2D string DP Facebook Microsoft Google

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Interleaving Strings 2D string DP Google Yahoo

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Word Break II DP optimized backtrack IBM Google

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Longest valid Parentheses DP tricky Google

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Repeating Sub-Sequence 2D string DP Google

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Rod Cutting Matrix DP Google

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Intersecting Chords in a Circle Simple array DP Directi Google Software ag urbanclap deshaw

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Sub Matrices with sum Zero Suffix / prefix DP Google dynamic programming

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Shortest common superstring DP tricky Google dynamic programming

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Increasing Path in Matrix Matrix DP Google matrix dp

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Greedy Algorithm

Gas Station Medium Greedy Bloomberg Google DE Shaw Amazon Flipkart Microsoft Goldman Sachs

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Majority Element Medium Greedy Microsoft Yahoo Google Amazon

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Disjoint Intervals Easy Greedy Google sorting

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Graph Data Structure & Algorithms

Convert Sorted List to Binary Search Tree graph adhoc Google

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Capture Regions on Board graph traversal Google

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Word Ladder II Shortest path Google Microsoft Ebay

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Clone Graph graph hashing Google Facebook Amazon

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Word Search Board graph traversal Epic systems Amazon Google infoworks

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Word Ladder I Shortest path Google Microsoft Ebay

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Largest Distance between nodes of a Tree Depth first search Facebook Google DP on a tree Depth first search

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Water Flow graph traversal Google dfs bfs

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Puzzles

Daughters' Ages Logical deduction Google

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Cross the Bridge Math Google Microsoft

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Divide the Cake Geometry and shapes Google

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Eggs and Building Math Google Nvidia

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Ratio of Boys and Girls Math Google Goldman Sachs

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