Software Developer

Ninja has organized the new year party and invited all the programmers for it, as being the programmer also has been invited by Ninja.

To detect whether the guest is a programmer or not, Ninja has set some tasks for them, such that only programmers can code them.

You have also been asked to solve and code the following task to verify your identity.

Given two integers, 'N' and 'K' find the number of permutation arrays of 'N' integers from 0 to 'N' - 1 satisfying the below condition.

There should be at least 'K' positions in the array such that 'ARR[I] = I' ( 0 <= I < N ) satisfies.

You are required to output the answer modulo 10^9 +7.

EXAMPLE:

Input: 'N' = 4 'K' = 3 
Output: 1

There is only one permutation [0, 1, 2, 3] such that a number of elements with 'ARR[I] = I' is 'K' = 3.

Create a function that determines whether a given number N belongs to the Fibonacci sequence. If N is found in the Fibonacci sequence, the function should return true; otherwise, it should return false.

You are given with an array of integers and an integer K. You have to find and print the count of all such pairs which have difference K.

Note: Take absolute difference between the elements of the array.

Ninja loves playing with numbers. So one day, he wants to arrange a few numbers in the ‘N’ number of rows. The first row contains 1 number, the second row has two numbers, the third row has 3 digits, and so on.

Ninja starts placing numbers in increasing order, with absolute difference 1, starting from 1 and continuing till he encounters 9, and then he again restarts from 1.

You are given an integer ‘N’ denoting the given number of rows. Can you print the pattern that Ninja wants to create?

Pattern for N = 4:

   1
  23
 456
7891

You're given a string 'S' consisting of "{", "}", "(", ")", "[" and "]" .

Return true if the given string 'S' is balanced, else return false.

For example:

'S' = "{}()".

There is always an opening brace before a closing brace i.e. '{' before '}', '(' before ').
So the 'S' is Balanced.

Find the angle between the minute and The hour clock
if its 4:10

Why do u want to join Nagarro
Explain About Yourself.