SDE - 1

You have been given two integers ‘X’ and ‘Y’ which are the first two integers of a series and an integer ‘N’. You have to find the Nth number of the series using the Fibonacci rule given by f(x) = f(x - 1) + f(x - 2).

The answer may be very large, return it after modulus 10 ^ 9 + 7.

Note:

The series is 1-based indexed.

Given a string, write a program to count the number of vowels, consonants, and spaces in that string.

EXAMPLE :

Input: ‘N’= 25, ‘s’ =”Take u forward is Awesome”
Output: 10 11 4

Three DBMS questions were asked:

1. The difference between the DELETE, TRUNCATE, and DROP commands. (Learn)
2. Explain the concept of the various types of keys used in DBMS, along with examples. (Learn)
3. Queries including the GROUP BY and ORDER BY clauses. (Learn)

You are given two sorted linked lists. You have to merge them to produce a combined sorted linked list. You need to return the head of the final linked list.

Note:

The given linked lists may or may not be null.

For example:

If the first list is: 1 -> 4 -> 5 -> NULL and the second list is: 2 -> 3 -> 5 -> NULL

The final list would be: 1 -> 2 -> 3 -> 4 -> 5 -> 5 -> NULL

• What is the most difficult decision you had to make, and how did you make it?
• Describe a situation that frustrated you and how you dealt with it.
• When did you feel a great sense of achievement, and why?