Sign In
Back to Sheets/Tcs Master DSA Sheet

Tcs Master DSA Sheet

This compilation contains exclusive, previously asked data structure and algorithm questions from real Tcs interviews. Focus on these core problem patterns to confidently tackle even the hardest interview challenges.

top-specifictcs-prep
0
217
Valid Parentheses6 Months
Easy
Convert Sorted List to Binary Search Tree
Medium
Min Stack
Medium
Subarray Product Less Than K
Medium
Longest Subarray of 1's After Deleting One Element
Medium
Second Highest Salary6 Months
Medium
Zigzag Conversion
Medium
Friday Purchases I
Medium
Reverse Linked List
Easy
Jump Game II
Medium
Majority Element II
Medium
Check If a Word Occurs As a Prefix of Any Word in a Sentence
Easy
Spiral Matrix6 Months
Medium
Koko Eating Bananas
Medium
Maximum Product Subarray
Medium
Managers with at Least 5 Direct Reports
Medium
Longest Substring Without Repeating Characters3 Months
Medium
Pow(x, n)6 Months
Medium
Trapping Rain Water
Hard
Next Permutation
Medium
Longest Palindromic Substring30 Days
Medium
Climbing Stairs
Easy
Serialize and Deserialize Binary Tree
Hard
Find K Closest Elements
Medium
Generate Parentheses
Medium
Diameter of Binary Tree
Easy
Merge Intervals
Medium
Unique Paths II
Medium
Largest Number
Medium
Regular Expression Matching
Hard
Valid Word
Easy
Remove All Occurrences of a Substring
Medium
Divisor Game
Easy
Task Scheduler3 Months
Medium
Sqrt(x)
Easy
Maximum Swap
Medium
First Missing Positive
Hard
Rotate Image
Medium
Middle of the Linked List
Easy
Permutation in String
Medium
Toeplitz Matrix
Easy
Pascal's Triangle
Easy
Container With Most Water
Medium
Burst Balloons6 Months
Hard
Bitwise ORs of Subarrays
Medium
LRU Cache
Medium
Set Matrix Zeroes
Medium
Move Zeroes3 Months
Easy
Maximum Number of Vowels in a Substring of Given Length
Medium
Non-overlapping Intervals
Medium
Linked List Cycle II
Medium
Merge Sorted Array
Easy
Rotting Oranges
Medium
Add Binary6 Months
Easy
Count the Digits That Divide a Number
Easy
Longest Common Subsequence
Medium
Combination Sum
Medium
Roman to Integer
Easy
Maximum Sum of Distinct Subarrays With Length K
Medium
Reverse Words in a String
Medium
Two Sum II - Input Array Is Sorted
Medium
Maximum Subarray6 Months
Medium
Contains Duplicate
Easy
Squares of a Sorted Array6 Months
Easy
Search in Rotated Sorted Array3 Months
Medium
Department Highest Salary
Medium
Two Sum6 Months
Easy
Single Element in a Sorted Array
Medium
Edit Distance
Medium
Count and Say
Medium
Longest Common Prefix6 Months
Easy
Find the Index of the First Occurrence in a String6 Months
Easy
Distribute Coins in Binary Tree
Medium
Maximum Ascending Subarray Sum
Easy
Group Anagrams
Medium
N-Queens
Hard
Subsets II
Medium
Letter Combinations of a Phone Number6 Months
Medium
Zigzag Grid Traversal With Skip
Easy
Binary Tree Maximum Path Sum
Hard
Merge Two Sorted Lists
Easy
Subarray Sum Equals K3 Months
Medium
Palindrome Partitioning IV
Hard
Reorder List
Medium
Recyclable and Low Fat Products
Easy
Sort Colors6 Months
Medium
3Sum Closest
Medium
Minimum Operations to Exceed Threshold Value I
Easy
Best Time to Buy and Sell Stock
Easy
Best Time to Buy and Sell Stock II
Medium
Word Search
Medium
Partition Equal Subset Sum
Medium
Maximal Rectangle
Hard
Largest Rectangle in Histogram
Hard
Valid Anagram3 Months
Easy
Palindrome Number3 Months
Easy
Jump Game
Medium
3Sum6 Months
Medium
Median of Two Sorted Arrays3 Months
Hard
Add Two Numbers3 Months
Medium
Integer to Roman
Medium
Minimum Operations to Exceed Threshold Value II
Medium
Merge k Sorted Lists
Hard
Minimum Cuts to Divide a Circle
Easy
Rotate Array3 Months
Medium
Fibonacci Number
Easy
Check If Array Pairs Are Divisible by k
Medium
Find the Duplicate Number
Medium
Majority Element6 Months
Easy
Valid Palindrome3 Months
Easy
Find All Duplicates in an Array
Medium
Reverse String6 Months
Easy
Sum of Unique Elements
Easy
Assign Cookies
Easy
Max Consecutive Ones6 Months
Easy
Remove Nth Node From End of List
Medium
Minimum Moves to Equal Array Elements II
Medium
Product Sales Analysis I
Easy
Delete the Middle Node of a Linked List
Medium
Next Greater Element I
Easy
Search in Rotated Sorted Array II
Medium
Unique Paths
Medium
Sliding Window Maximum
Hard
Project Employees I
Easy
Sort Array by Increasing Frequency
Easy
Find First and Last Position of Element in Sorted Array
Medium
Maximum Product of Three Numbers
Easy
Department Top Three Salaries
Hard
Delete Duplicate Emails
Easy
Power of Two
Easy
Intersection of Two Arrays II
Easy
First Unique Character in a String
Easy
Duplicate Emails
Easy
Convert a Number to Hexadecimal
Easy
Find Peak Element
Medium
Employee Bonus
Easy
K-diff Pairs in an Array
Medium
4Sum6 Months
Medium
Contains Duplicate II
Easy
Subsets
Medium
Tallest Billboard
Hard
Remove Duplicates from Sorted Array
Easy
How Many Numbers Are Smaller Than the Current Number
Easy
Sort an Array
Medium
Article Views I
Easy
Intersection of Two Arrays
Easy
Missing Number
Easy
Longest Palindromic Subsequence3 Months
Medium
Smallest Sufficient Team
Hard
Minimum Size Subarray Sum
Medium
Remove Element6 Months
Easy
Find Minimum in Rotated Sorted Array
Medium
Plus One
Easy
Matrix Diagonal Sum
Easy
Find Customer Referee
Easy
Integer to English Words
Hard
Odd Even Linked List
Medium
Number of Provinces
Medium
Search Insert Position
Easy
Happy Number
Easy
Number of Good Pairs
Easy
Ugly Number
Easy
Split Array With Same Average
Hard
Sort Characters By Frequency
Medium
Check if Array Is Sorted and Rotated
Easy
House Robber
Medium
Length of Last Word
Easy
String to Integer (atoi)6 Months
Medium
Find the Highest Altitude
Easy
Longest Consecutive Sequence
Medium
N-th Tribonacci Number
Easy
Minimum Cost to Make at Least One Valid Path in a Grid
Hard
Water Bottles
Easy
Fizz Buzz
Easy
Remove Letter To Equalize Frequency
Easy
Reverse Integer
Medium
Count Primes
Medium
Bulb Switcher
Medium
Peak Index in a Mountain Array
Medium
Longest Balanced Substring II
Medium
Smallest Integer Divisible by K6 Months
Medium
Create Hello World Function
Easy
The kth Factor of n
Medium
Find the Original Typed String I
Easy
Range Sum Query - Immutable
Easy
Count Number of Pairs With Absolute Difference K
Easy
Repeated Substring Pattern
Easy
Third Maximum Number
Easy
Single Number
Easy
Find Minimum Operations to Make All Elements Divisible by Three
Easy
Linked List Cycle
Easy
Teemo Attacking
Easy
Minimum Add to Make Parentheses Valid
Medium
Flipping an Image
Easy
Maximum Number of Events That Can Be Attended II
Hard
Running Sum of 1d Array
Easy
To Be Or Not To Be
Easy
Big Countries
Easy
Remove Duplicates from Sorted Array II
Medium
Rotate List
Medium
Binary Search
Easy
Return Length of Arguments Passed
Easy
Path with Maximum Probability
Medium
Replace Employee ID With The Unique Identifier
Easy
Two Best Non-Overlapping Events
Medium
Search a 2D Matrix
Medium
Maximum Average Subarray I
Easy
Binary Tree Inorder Traversal
Easy
String Compression III
Medium
Guess Number Higher or Lower
Easy
Factorial Trailing Zeroes
Medium
Employees Earning More Than Their Managers
Easy
Find Subsequence of Length K With the Largest Sum
Easy
Maximum Gap
Medium
Count the Number of Fair Pairs
Medium
Remove Duplicates from Sorted List
Easy
Maximum Nesting Depth of the Parentheses
Easy