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Top Questions asked By Walmart

 


  1. Discuss in detail what happens when you write a code and compile it.
  2. What is multithreading? State any C++ multithreading framework you might have worked with.
  3. Explain encapsulation, abstraction, polymorphism.
  4. Explain inheritance. What is the Diamond problem?
  5. How memory is allocated in C++.
  6. What is malloc? Differences from calloc?
  7. What is a microprocessor?
  8. Explain microservices architecture.
  9. Explain normalization and all their forms.
  10. Differences between inner and outer joins.
  11. DFS vs. BFS
  12. What is the heap?
  13. Detect a loop in the linked list. If a loop exists, return the start node of the loop.
  14. Find the third most frequent element in an array.

  15. Finding n next permutations using some specific set of digits given.

  16.  Find the number of ways of reaching from top left to bottom right of a matrix.

  17.  Minimum number of jumps to reach end

  18. given a number N. print in how many ways it can be represented as N = a+b+c+d , 1< =a< =b< =c< = d; 1<=N< = 5000

  19.  given two number l and r (l<=r<=10^6) find most frequent digit among all prime numbers between l and r inclusive. if frequency is same print highest digit.

  20.  Check for balanced parenthesis

  21.  Find the maximum digit occurred in a range of prime numbers

  22.  https://www.hackerearth.com/problem/algorithm/magnificent-fountains/

  23. Explain inner classes in JAVA. Where exactly inner classes were used while designing famous JAVA APIs.

  24.  Find the number of possibilities to move from one point to another point in a chess board kind of square box.

  25. Remove spaces in a string without using inbuilt function and taking constant space.

  26. Reverse a linked list.

  27. Maximum height of a tree.

  28. Find the number of leaf nodes for a given node.

  29. How has Linkedin designed the number of hops to get connected to other people.

  30.  https://www.geeksforgeeks.org/count-number-ways-reach-given-score-game/

  31. https://www.geeksforgeeks.org/longest-palindrome-substring-set-1

  32.  https://practice.geeksforgeeks.org/problems/maximum-tip-calculator/0

  33. https://www.geeksforgeeks.org/connect-nodes-at-same-level-with-o1-extra-space/

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