TCS Ninja

Given an array ‘a’ of size ‘n’-1 with elements of range 1 to ‘n’. The array does not contain any duplicates. Your task is to find the missing number.

For example:

Input:
'a' = [1, 2, 4, 5], 'n' = 5

Output :
3

Explanation: 3 is the missing value in the range 1 to 5.

You are given a string that may contain a mix of uppercase letters, lowercase letters, digits, and symbols. Your task is to transform this string according to a specific case-alternating rule and print the result.

The transformation rule is as follows:

1) All characters in the output string must appear in the same order as in the input string.

2) The case of the alphabetic characters must alternate, starting with lowercase. The first letter should be lowercase, the second uppercase, the third lowercase, and so on.

3) Non-alphabetic characters (like digits, spaces, and symbols) should not be changed and should be kept in their original positions. These non-alphabetic characters do not affect the alternating case count of the letters.

Explain the difference between array and linked list. (Learn)

• What is cloud computing? (Learn)
• What are main cloud service models (IaaS, PaaS, SaaS)? (Learn)
• Explain deployment models: Public, Private, Hybrid, and Community Cloud. (Learn)
• What are the advantages of using AWS over traditional hosting? (Learn)
• What is EC2, and how is it used? (Learn)

What do you mean by a CI/CD pipeline? Explain the stages involved in a typical CI/CD process. (Learn)

• What is the difference between SQL and NoSQL databases? (Learn)
• Explain normalization and why it’s important. (Learn)
• Explain:
  • Primary key. (Learn)
  • Foreign key. (Learn)
  • Unique key. (Learn)

• Tell me about your projects and your role in them.
• What technologies have you worked on recently?