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Cognizant Master DSA Sheet

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

top-specificcognizant-prep
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Valid Parentheses3 Months
Second Highest Salary6 Months
Find Numbers with Even Number of Digits
Longest Palindromic Substring3 Months
Climbing Stairs
Longest Substring Without Repeating Characters30 Days
First Missing Positive
Sort Array By Absolute Value
Students and Examinations
Maximum Subarray
Move Zeroes
String Compression
Roman to Integer
Merge Sorted Array3 Months
Single Element in a Sorted Array
Two Sum6 Months
Rotate Array
Palindrome Number6 Months
Add Two Numbers
Jump Game6 Months
Group Anagrams
Combine Two Tables3 Months
Fibonacci Number6 Months
Minimum Absolute Difference
Median of Two Sorted Arrays
Valid Anagram
Best Time to Buy and Sell Stock6 Months
Valid Palindrome
Subarray Sum Equals K
Find the Highest Altitude
Happy Number
Product Sales Analysis I
Remove Duplicates from Sorted Array
Search Insert Position
Article Views I6 Months
Reverse Integer
Fizz Buzz
Rising Temperature
Max Consecutive Ones
Single Number6 Months
Replace Employee ID With The Unique Identifier
Employees Earning More Than Their Managers
Binary Search
Smallest Value of the Rearranged Number
Count Subarrays of Length Three With a Condition