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Cognizant SDE 2

The 47 highest-frequency questions from all time. Finish the strongest signals first.

Updated weekly · Latest source check: 13 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

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Top questions 47

Done	Question	LeetCode
Mark Count Subarrays of Length Three With a Condition completed	Count Subarrays of Length Three With a Condition	Solve
Mark Palindrome Number completed	Palindrome Number	Solve
Mark Two Sum completed	Two Sum	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Smallest Value of the Rearranged Number completed	Smallest Value of the Rearranged Number	Solve
Mark Sort Array By Absolute Value completed	Sort Array By Absolute Value	Solve
Mark Fibonacci Number completed	Fibonacci Number	Solve
Mark Second Highest Salary completed	Second Highest Salary	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Merge Sorted Array completed	Merge Sorted Array	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Valid Palindrome completed	Valid Palindrome	Solve
Mark Article Views I completed	Article Views I	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Combine Two Tables completed	Combine Two Tables	Solve
Mark First Missing Positive completed	First Missing Positive	Solve
Mark Majority Element completed	Majority Element	Solve
Mark Max Consecutive Ones completed	Max Consecutive Ones	Solve
Mark Maximum Subarray completed	Maximum Subarray	Solve
Mark Product Sales Analysis I completed	Product Sales Analysis I	Solve
Mark Remove Duplicates from Sorted Array completed	Remove Duplicates from Sorted Array	Solve
Mark Replace Employee ID With The Unique Identifier completed	Replace Employee ID With The Unique Identifier	Solve
Mark Reverse Integer completed	Reverse Integer	Solve
Mark Binary Search completed	Binary Search	Solve
Mark Employees Earning More Than Their Managers completed	Employees Earning More Than Their Managers	Solve
Mark Find the Highest Altitude completed	Find the Highest Altitude	Solve
Mark Find the Index of the First Occurrence in a String completed	Find the Index of the First Occurrence in a String	Solve
Mark Find Total Time Spent by Each Employee completed	Find Total Time Spent by Each Employee	Solve
Mark Jump Game completed	Jump Game	Solve
Mark Linked List Cycle completed	Linked List Cycle	Solve
Mark Minimum Absolute Difference completed	Minimum Absolute Difference	Solve
Mark Next Permutation completed	Next Permutation	Solve
Mark Nth Highest Salary completed	Nth Highest Salary	Solve
Mark Rank Scores completed	Rank Scores	Solve
Mark Rising Temperature completed	Rising Temperature	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Single Number completed	Single Number	Solve
Mark Sort Vowels in a String completed	Sort Vowels in a String	Solve
Mark String Compression completed	String Compression	Solve
Mark Third Maximum Number completed	Third Maximum Number	Solve