Cognizant Interview Questions (45)

Practice real interview problems from Cognizant

Title	Solution	Practice	Difficulty	Companies	Topics
1. Two Sum	Solution	Solve	Easy	Accenture+128	Array Hash Table
9. Palindrome Number	Solution	Solve	Easy	Accenture+34	Math
13. Roman to Integer	Solution	Solve	Easy	Accenture+44	Hash Table Math+1
20. Valid Parentheses	Solution	Solve	Easy	Accenture+118	Stack String
26. Remove Duplicates from Sorted Array	Solution	Solve	Easy	Accenture+27	Array Two Pointers
35. Search Insert Position	Solution	Solve	Easy	Accenture+13	Array Binary Search
70. Climbing Stairs	Solution	Solve	Easy	Accenture+37	Dynamic Programming Math+1
88. Merge Sorted Array	Solution	Solve	Easy	Accenture+41	Array Sorting+1
121. Best Time to Buy and Sell Stock	Solution	Solve	Easy	Accenture+103	Array Dynamic Programming
125. Valid Palindrome	Solution	Solve	Easy	Accenture+41	String Two Pointers
136. Single Number	Solution	Solve	Easy	Accenture+14	Array Bit Manipulation
175. Combine Two Tables	Solution	Solve	Easy	Amazon+5	Database
181. Employees Earning More Than Their Managers	Solution	Solve	Easy	Accenture+10	Database
197. Rising Temperature	Solution	Solve	Easy	Accenture+11	Database
202. Happy Number	Solution	Solve	Easy	Accenture+30	Hash Table Math+1
242. Valid Anagram	Solution	Solve	Easy	Accenture+40	Hash Table Sorting+1
283. Move Zeroes	Solution	Solve	Easy	Accenture+48	Array Two Pointers
412. Fizz Buzz	Solution	Solve	Easy	Agoda+18	Math Simulation+1
485. Max Consecutive Ones	Solution	Solve	Easy	Accenture+12	Array
509. Fibonacci Number	Solution	Solve	Easy	Accenture+17	Dynamic Programming Math+2
704. Binary Search	Solution	Solve	Easy	Adobe+12	Array Binary Search
1068. Product Sales Analysis I	Solution	Solve	Easy	Amazon+7	Database
1148. Article Views I	Solution	Solve	Easy	Amazon+8	Database
1200. Minimum Absolute Difference	Solution	Solve	Easy	Agoda+14	Array Sorting
1280. Students and Examinations	Solution	Solve	Easy	Accenture+7	Database
1295. Find Numbers with Even Number of Digits	Solution	Solve	Easy	Amazon+6	Array Math
1378. Replace Employee ID With The Unique Identifier	Solution	Solve	Easy	Amazon+9	Database
1732. Find the Highest Altitude	Solution	Solve	Easy	Accenture+8	Array Prefix Sum
3667. Sort Array By Absolute Value	Solution	Solve	Easy	Cognizant
3392. Count Subarrays of Length Three With a Condition	Solution	Solve	Easy	Amazon+4