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DSA Corner

Dashboard Questions Topics Companies Sheets

Infosys Interview Questions

41 coding problems asked in Infosys interviews. Prepare for your technical interview with real questions.

41

Problems

5

Easy

25

Medium

11

Hard

Difficulty

All41 Easy5 Medium25 Hard11

Status	Title	Video	Leetcode	Solve	Difficulty	Companies	Topics
	15. 3Sum			Solve	Medium	Adobe+21	Array Sorting+1
	18. 4Sum			Solve	Medium	Adobe+8	Array Sorting+1
	46. Permutations			Solve	Medium	Accenture+39	Array Backtracking
	53. Maximum Subarray			Solve	Medium	Adobe+22	Array Divide and Conquer+1
	92. Reverse Linked List II			Solve	Medium	1218 Global+122	Linked List
	95. Unique Binary Search Trees II			Solve	Medium	Adobe+14	Backtracking Binary Search Tree+3
	139. Word Break			Solve	Medium	Accenture+38	Array Dynamic Programming+4
	152. Maximum Product Subarray			Solve	Medium	Adobe+6	Array Dynamic Programming
	215. Kth Largest Element in an Array			Solve	Medium	ABCO+44	Array Divide and Conquer+3
	300. Longest Increasing Subsequence			Solve	Medium	Accenture+78	Array Binary Search+1
	518. Coin Change II			Solve	Medium	Accenture+68	Array Dynamic Programming
	785. Is Graph Bipartite?			Solve	Medium	Bunzo+10	Breadth-First Search Depth-First Search+2
	856. Score of Parentheses			Solve	Medium	Amazon+4	Stack String
	1124. Longest Well-Performing Interval			Solve	Medium	Infosys	Array Hash Table+3
	1318. Minimum Flips to Make a OR b Equal to c			Solve	Medium	De Shaw and Co+4	Bit Manipulation
	1540. Can Convert String in K Moves			Solve	Medium	Infosys	Hash Table String
	1798. Maximum Number of Consecutive Values You Can Make			Solve	Medium	Infosys	Array Greedy+1
	1838. Frequency of the Most Frequent Element			Solve	Medium	Adobe+7	Array Binary Search+4
	1946. Largest Number After Mutating Substring			Solve	Medium	Infosys	Array Greedy+1
	2233. Maximum Product After K Increments			Solve	Medium	Infosys	Array Greedy+1
	2445. Number of Nodes With Value One			Solve	Medium	Infosys	Binary Tree Breadth-First Search+2
	2457. Minimum Addition to Make Integer Beautiful			Solve	Medium	Infosys	Greedy Math
	2597. The Number of Beautiful Subsets			Solve	Medium	Facebook+1	Array Backtracking+5
	2829. Determine the Minimum Sum of a k-avoiding Array			Solve	Medium	Infosys	Greedy Math
	2834. Find the Minimum Possible Sum of a Beautiful Array			Solve	Medium	Infosys	Greedy Math

3Sum

Medium✓ Solution📹 Video

Adobe+21

Array Sorting Two Pointers

4Sum

Medium✓ Solution📹 Video

Adobe+8

Array Sorting Two Pointers

Permutations

Medium✓ Solution📹 Video

Accenture+39

Array Backtracking

Maximum Subarray

Medium✓ Solution📹 Video

Adobe+22

Array Divide and Conquer Dynamic Programming

Reverse Linked List II

Medium✓ Solution📹 Video

1218 Global+122

Unique Binary Search Trees II

Medium✓ Solution📹 Video

Adobe+14

Backtracking Binary Search Tree Binary Tree+2

Word Break

Medium✓ Solution📹 Video

Accenture+38

Array Dynamic Programming Hash Table+3

Maximum Product Subarray

Medium✓ Solution📹 Video

Adobe+6

Array Dynamic Programming

Kth Largest Element in an Array

Medium✓ Solution📹 Video

ABCO+44

Array Divide and Conquer Heap (Priority Queue)+2

Longest Increasing Subsequence

Medium✓ Solution📹 Video

Accenture+78

Array Binary Search Dynamic Programming

Coin Change II

Medium✓ Solution📹 Video

Accenture+68

Array Dynamic Programming

Is Graph Bipartite?

Medium✓ Solution📹 Video

Bunzo+10

Breadth-First Search Depth-First Search Graph+1

Score of Parentheses

Medium✓ Solution📹 Video

Amazon+4

Longest Well-Performing Interval

Medium📹 Video

Infosys

Array Hash Table Monotonic Stack+2

Minimum Flips to Make a OR b Equal to c

Medium✓ Solution📹 Video

De Shaw and Co+4

Bit Manipulation

Can Convert String in K Moves

Medium📹 Video

Infosys

Hash Table String

Maximum Number of Consecutive Values You Can Make

Medium📹 Video

Infosys

Array Greedy Sorting

Frequency of the Most Frequent Element

Medium✓ Solution📹 Video

Adobe+7

Array Binary Search Greedy+3

Largest Number After Mutating Substring

Medium📹 Video

Infosys

Array Greedy String

Maximum Product After K Increments

Medium📹 Video

Infosys

Array Greedy Heap (Priority Queue)

Number of Nodes With Value One

Medium📹 Video

Infosys

Binary Tree Breadth-First Search Depth-First Search+1

Minimum Addition to Make Integer Beautiful

Medium📹 Video

Infosys

The Number of Beautiful Subsets

Medium✓ Solution📹 Video

Facebook+1

Array Backtracking Combinatorics+4

Determine the Minimum Sum of a k-avoiding Array

Medium📹 Video

Infosys

Find the Minimum Possible Sum of a Beautiful Array

Medium📹 Video

Infosys