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      12th Wonder

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      Lead .NET Developer Interview

      Jul 24, 2025
      Anonymous interview candidate
      No offer
      Negative experience
      Easy interview

      Application

      I applied online. I interviewed at 12th Wonder in Jul 2025

      Interview

      It was first telephonic screening about your current job and expectation all. Then there will be second round they ask you coding questions by same HR who discussed with you yesterday on telephone. HR taking coding round I found different here. I solved 2 questions for string manipulation and array,

      Interview questions [5]

      Question 1

      Write a C# program to find the largest prime factor of a given number. Input: Number = 13195
      Answer question

      Question 2

      What is the 10001st prime number?
      Answer question

      Question 3

      What is the smallest number that is evenly divisible by all of the numbers from 1 to 20?
      Answer question

      Question 4

      Write a C# program to merge two sorted arrays into a single sorted array. Input: [1, 3, 5, 7, 9][2, 4, 6, 8, 10]
      Answer question

      Question 5

      Write a C# program to reverse a given string. Input: “Hello, World!”
      Answer question