Rotation of array by d position
Write a function rotate(ar[], d, n) that rotates arr[] of size n by d elements.
Rotation of the above array by 2 will make array
Given an integer n, write a function that returns count of trailing zeroes in n!. Examples: Input: n = 5 Output: 1 Factorial of 5 is 20 which has one trailing 0. Input: n = 20 Output: 4 Factorial of 20 is 2432902008176640000 which has 4 trailing zeroes. Input: n = 100 Output: 24
we can use the block swap algorithm for array rotation
ReplyDeletein rotate(arr[],d,n)
suppose A=arr[0..d-1] and B=arr[d..n]
now B is divided into 2 parts B1 and B2 such that A nd B2 have same size;
Now we block swap A with B2 that AB1B2 becomes B2B1A
now we can apply the same algo recursively for B1A as B2 is at its right place....
rotate will take two parameters start and end
we can also specify the left and right rotation to change the algorithm
ReplyDelete@Navin yes this can be solved by block swap algorithm.There are different swap algorithm which can also be used..:)
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