SDE - 1

You are given a string 'str' of length 'N'.

Your task is to reverse the original string word by word.

There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.

Example :

If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.

What is DBMS ?
What is SQL ?
Write SQL query?
What is Promise?
What is Async /await?

Ninja has been given a number ‘SUM’. Ninja has to print the minimum number of Fibonacci numbers whose sum is equal to ‘SUM’.

As Ninja is busy at work, he assigns this task to you. Can you help Ninja to solve this task?

Note :

1. Ninja can use the same Fibonacci number any number of times.
2. It is also guaranteed that there are always some Fibonacci numbers whose sum is equal to ‘SUM’.  

Given a positive even integer 'K', your task is to find two prime numbers whose sum is equal to 'K'. If there are multiple answers, you may find any.

Example , for K = 4 the pair is ( 2, 2) , For K = 10 the pair is ( 3, 7).

Note :

It is guaranteed that 'K' will always be greater than two.

Write SQL commands for creating a table

What is normalisation?

Explain 1NF, 2NF, 3NF.

Tell me about yourself

Why do you want to join MOBCODER?

What motivates you to do programming?

Why should we hire you?