Coding Mart Interview Experience

I applied for the Coding Mart On-Campus drive. There were a total of 4 rounds.

Interview Process :

• Day 1:
  • MCQ
  • DSA program
• Day 2:
  • HR Round

Round 1: It was an MCQ round. There were 25 easy-level DSA questions. Codes were on simple topics like linked lists, trees, graphs, DP, etc., Level of Difficulty: Easy-Medium.

Round 2: In round 2 there was 1 DSA programming test held in the college lab.  

• Create a binary search tree (BST) and Delete all the given arrays of nodes then traverse in order. Level of Difficulty: Easy.
• There were questions on Arrays and Queues.

Round 3: There were 2 interview rounds a technical and an HR. 

Technical interview: In a technical interview, I was asked 3 DSA questions. And they gave a topic to present for at least 3 minutes. Major questions arise from my resume. The questions that I asked in DSA coding questions are listed below:

• Program to find the frequency of each element in an array.
  • Ex: Input: arr [] = {1,1,2,3,3,4} 
    Output: {1 : 2, 2 : 1, 3 : 2, 4 : 1}
• Given a string and n is the no of rows. Print the string in a zigzag manner.
  • For example, if str = ‘PROGRAMMING’ and n=3 then the output is ‘PRIRGAMNOMG’.
    • [ P     R     I 
        R G A M N
        O    M     G ]
• Program to find the sum of the value of nodes having only one child.
  • For example,
  • Input : 
                1
               / \
             2   3
            / \
          4   5
         /  \    \
        6   7   8
  • Output is 2 + 3 + 5 = 10. Because 2, 3, and 5 have a single child.
    

HR round: It was simple negotiation with HR, like Are you ready to relocate and other simple questions.