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Udaan Interview Questions (45)

Practice real interview problems from Udaan

All45 Easy17 Medium22 Hard6

Status	Title	Solution	Practice	Difficulty	Companies	Topics
	2. Add Two Numbers	Solution	Solve	Medium	Accenture+37	Linked List Math+1
	3. Longest Substring Without Repeating Characters	Solution	Solve	Medium	Accenture+111	Hash Table Sliding Window+1
	5. Longest Palindromic Substring	Solution	Solve	Medium	Accenture+75	Dynamic Programming String+1
	11. Container With Most Water	Solution	Solve	Medium	Accenture+57	Array Greedy+1
	33. Search in Rotated Sorted Array	Solution	Solve	Medium	Accolite+54	Array Binary Search
	49. Group Anagrams	Solution	Solve	Medium	Accolite+90	Array Hash Table+2
	53. Maximum Subarray	Solution	Solve	Medium	Accenture+65	Array Divide and Conquer+1
	56. Merge Intervals	Solution	Solve	Medium	Accenture+108	Array Sorting
	128. Longest Consecutive Sequence	Solution	Solve	Medium	Adobe+38	Array Hash Table+1
	139. Word Break	Solution	Solve	Medium	Amazon+34	Array Dynamic Programming+4
	146. LRU Cache	Solution	Solve	Medium	Adobe+127	Design Doubly-Linked List+2
	200. Number of Islands	Solution	Solve	Medium	Accenture+86	Array Breadth-First Search+3
	204. Count Primes	Solution	Solve	Medium	Accenture+18	Array Enumeration+2
	215. Kth Largest Element in an Array	Solution	Solve	Medium	Accenture+44	Array Divide and Conquer+3
	221. Maximal Square	Solution	Solve	Medium	Airbnb+29	Array Dynamic Programming+1
	236. Lowest Common Ancestor of a Binary Tree	Solution	Solve	Medium	Adobe+22	Binary Tree Depth-First Search+1
	238. Product of Array Except Self	Solution	Solve	Medium	Accenture+43	Array Prefix Sum
	322. Coin Change	Solution	Solve	Medium	Accenture+41	Array Breadth-First Search+1
	1038. Binary Search Tree to Greater Sum Tree	Solution	Solve	Medium	Amazon+4	Binary Search Tree Binary Tree+2
	1341. Movie Rating	Solution	Solve	Medium	Amazon+5	Database
	1428. Leftmost Column with at Least a One	Solution	Solve	Medium	Meta+2	Array Binary Search+2
	1953. Maximum Number of Weeks for Which You Can Work	Solution	Solve	Medium	NatWest+2	Array Greedy

Add Two Numbers

Medium✓ Solution📹 Video

Accenture+37

Linked List Math Recursion

Longest Substring Without Repeating Characters

Medium✓ Solution📹 Video

Accenture+111

Hash Table Sliding Window String

Longest Palindromic Substring

Medium✓ Solution📹 Video

Accenture+75

Dynamic Programming String Two Pointers

Container With Most Water

Medium✓ Solution📹 Video

Accenture+57

Array Greedy Two Pointers

Search in Rotated Sorted Array

Medium✓ Solution

Accolite+54

Array Binary Search

Group Anagrams

Medium✓ Solution📹 Video

Accolite+90

Array Hash Table Sorting+1

Maximum Subarray

Medium✓ Solution📹 Video

Accenture+65

Array Divide and Conquer Dynamic Programming

Merge Intervals

Medium✓ Solution📹 Video

Accenture+108

Longest Consecutive Sequence

Medium✓ Solution

Adobe+38

Array Hash Table Union Find

Word Break

Medium✓ Solution📹 Video

Amazon+34

Array Dynamic Programming Hash Table+3

LRU Cache

Medium✓ Solution

Adobe+127

Design Doubly-Linked List Hash Table+1

Number of Islands

Medium✓ Solution📹 Video

Accenture+86

Array Breadth-First Search Depth-First Search+2

Count Primes

Medium✓ Solution

Accenture+18

Array Enumeration Math+1

Kth Largest Element in an Array

Medium✓ Solution📹 Video

Accenture+44

Array Divide and Conquer Heap (Priority Queue)+2

Maximal Square

Medium✓ Solution

Airbnb+29

Array Dynamic Programming Matrix

Lowest Common Ancestor of a Binary Tree

Medium✓ Solution

Adobe+22

Binary Tree Depth-First Search Tree

Product of Array Except Self

Medium✓ Solution📹 Video

Accenture+43

Array Prefix Sum

Coin Change

Medium✓ Solution📹 Video

Accenture+41

Array Breadth-First Search Dynamic Programming

Binary Search Tree to Greater Sum Tree

Medium✓ Solution📹 Video

Amazon+4

Binary Search Tree Binary Tree Depth-First Search+1

Movie Rating

Medium📹 Video

Amazon+5

Leftmost Column with at Least a One

Medium✓ Solution📹 Video

Meta+2

Array Binary Search Interactive+1

Maximum Number of Weeks for Which You Can Work

Medium

NatWest+2