sort LL efficiently
The LL is in alternating ascending and descendin orders. Sort the list efficiently
egs: 1->2->3->12->11->2->10->6->NULL
egs: 1->2->3->12->11->2->10->6->NULL
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
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