RotationGiven an array Arr[] of N integers and a positive integer K. The task is to cyclically rotate the arrayclockwise by K.Note: Keep the first position of the array unaltered.Constraints:Constraints1 < N <=100-100 <= Arr[i] <=1001 <=K <=100Input format for testingThe candidate should write the code to accept the inputs separated by a new line.First Input: Accept a single positive integer value for N representing the size of Arr[]Second Input: Accept N number of integer values separated by a new line, as elements of Arr[]Third input: Accept a single positive integer value for K representing the number of rotations.Output format for testingThe output must be N integer numbers separated by a single space character.Additional messages in the output will result in the failure of test cases.Example:Input5 -- Value of N{10, 20, 30, 40, 50} -- Elements ofArr[]2 -- Value of KOutput40 50 10 20 30Explanation:Arr[] = {10, 20, 30, 40, 50} and K = 2 (Two cyclical rotations)After 1st rotation = {10, 50, 20, 30, 40}After 2nd rotation = {10, 40, 50, 20, 30}
Question
RotationGiven an array Arr[] of N integers and a positive integer K. The task is to cyclically rotate the arrayclockwise by K.Note: Keep the first position of the array unaltered.Constraints:Constraints1 < N <=100-100 <= Arr[i] <=1001 <=K <=100Input format for testingThe candidate should write the code to accept the inputs separated by a new line.First Input: Accept a single positive integer value for N representing the size of Arr[]Second Input: Accept N number of integer values separated by a new line, as elements of Arr[]Third input: Accept a single positive integer value for K representing the number of rotations.Output format for testingThe output must be N integer numbers separated by a single space character.Additional messages in the output will result in the failure of test cases.Example:Input5 -- Value of N{10, 20, 30, 40, 50} -- Elements ofArr[]2 -- Value of KOutput40 50 10 20 30Explanation:Arr[] = {10, 20, 30, 40, 50} and K = 2 (Two cyclical rotations)After 1st rotation = {10, 50, 20, 30, 40}After 2nd rotation = {10, 40, 50, 20, 30}
Solution
To solve this problem, we can use the concept of array slicing in Python. Here are the steps to solve this problem:
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First, we need to accept the inputs. The first input is the size of the array, the second input is the array elements, and the third input is the number of rotations.
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We need to keep the first position of the array unaltered. So, we will only rotate the elements from the second position to the end of the array.
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To rotate the array, we can use array slicing. We slice the array from the second position to the end, and then slice it again from the second position to the end plus the number of rotations. This will give us the rotated array.
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Finally, we print the rotated array.
Here is the Python code for the above steps:
# Accept the inputs
N = int(input())
Arr = list(map(int, input().split()))
K = int(input())
# Keep the first position unaltered and rotate the rest of the array
Arr[1:] = Arr[-K+1:] + Arr[1:-K+1]
# Print the rotated array
print(' '.join(map(str, Arr)))
In this code, Arr[-K+1:] gives the last K-1 elements of the array and Arr[1:-K+1] gives the elements from the second position to the end minus K-1. By adding these two slices, we get the rotated array.
Similar Questions
Given an array Arr[] of N integers and a positive integer K. The task is to cyclically rotate the arrayclockwise by K.Note: Keep the first position of the array unaltered.
Rotate an ArrayA group of students is working on a robotics project where a sensor array needs to be adjusted to avoid obstacles. They need a function to simulate rotating the sensor readings (an array of integers) to the right by a given number of positions.Write a function that rotates an array of integers to the right by a given number of positions.Constraints:NAExample:Input:51 2 3 4 51Output:5 1 2 3 4Explanation:Input:5 --->size of array1 2 3 4 5----->elements in array1 ---> number of shifts to be doneOutput:5 1 2 3 4 ---> array after rotating it by 1 step
A left rotation operation on an array of size shifts each of the array's elements unit to the left. Given an integer, , rotate the array that many steps left and return the result.ExampleAfter rotations, .Function DescriptionComplete the rotateLeft function in the editor below.rotateLeft has the following parameters:int d: the amount to rotate byint arr[n]: the array to rotateReturnsint[n]: the rotated arrayInput FormatThe first line contains two space-separated integers that denote , the number of integers, and , the number of left rotations to perform.The second line contains space-separated integers that describe .ConstraintsSample Input5 41 2 3 4 5Sample Output5 1 2 3 4ExplanationTo perform left rotations, the array undergoes the following sequence of changes:
Rotate Array to the Right by K StepsWrite a C++ function to rotate an array to the right by K steps.The function should handle negative values of K by rotating to the left. Optimize for time complexity.Constraints:NAExample:Sample Input:71 2 3 4 5 6 73Sample Output:4 5 6 7 1 2 3 Explanation:Input:7------------>Size of array1 2 3 4 5 6 7 --->Elements of array3 ---->Steps to be rotated before reversalOutput:After rotating array by 3 steps, reverse the remaining elements in the arrays.
To rotate an array to the right by K positions, you would:
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