1. Reverse a Linked List
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Google
Microsoft
Nagarro
MakyMyTrip
Amazon
Software Engineer
Software Engineer
Backend Developer
Full Stack Developer
2. Two Sum (Find pair with given sum)
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Samsung
TCS
Infosys
Software Engineer
Full Stack Developer
Backend Developer
3. How to Detect and Remove Loop in a Linked List
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MakyMyTrip
Microsoft
Samsung
Senior Software Engineer
Software Engineer
Senior Software Engineer
4. Remove Duplicates from Sorted Array
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Samsung
MakyMyTrip
Cognizant
Software Engineer
Senior Software Engineer
5. Valid Parentheses
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MakyMyTrip
Microsoft
Nagarro
Backend Developer
Software Engineer
Software Engineer
6. Find the largest three distinct elements in an array
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Infosys
Nagarro
Backend Developer
Software Engineer
7. Implement Stack using Queues
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Amazon
Senior Software Engineer
8. How to find all permutations of String?
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Booking.com
Backend Developer
9. Find the occurrences (or frequency) of a given number in a sorted array
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Nagarro
Senior Software Engineer
10. Reverse words in a string
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Browser Stack
Software Engineer
11. Sort an array of 0s, 1s and 2s
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MakyMyTrip
Senior Software Engineer
12. How to find kth smallest element in unsorted array?
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Amazon
13. Application of stack data structure
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14. Queue Implementation using a Linked List
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15. LRU Cache Implementation
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16. Application of queue data structure
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17. Convert Infix expression to Postfix expression
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18. Convert integer number to roman number
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19. Find nth node from end of linked list
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20. Delete Middle of Linked List
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21. Rotate a Linked List
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22. Check if a singly linked list is palindrome
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23. Programme to find intersection of two sorted arrays
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24. How to find if there is a sub array with sum equal to zero?
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25. How to merge sorted array?
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26. How to check if two Strings are anagrams of each other?
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27. How to find duplicate characters in a String?
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