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Task 1: "Trailing Zeroes
You are given a positive integer $N (<= 10).
Write a script to print number of trailing zeroes in $N!.
Example 1
Input: $N = 10
Output: 2 as $N! = 3628800 has 2 trailing zeroes
Example 2
Input: $N = 7
Output: 1 as $N! = 5040 has 1 trailing zero
Example 3
Input: $N = 4
Output: 0 as $N! = 24 has 0 trailing zero
"
My notes: ok. Very easy. fact and "while mod 10 == 0 inc & div 10"
See also ch-1a.pl, which TABULATES n, n! and trailing-zeroes(n!)..
Task 2: "Lines Range
You are given a text file name $file and range $A - $B where $A <= $B.
Write a script to display lines range $A and $B in the given file.
Example
Input:
$ cat input.txt
L1
L2
L3
L4
...
...
...
...
L100
$A = 4 and $B = 12
Output:
L4
L5
L6
L7
L8
L9
L10
L11
L12
"
My notes: ok. Seems even easier. I/O and a line number count (let's use $.)
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