reversing_number

Reverse the number by different approach

Old approach:

Modulo and integer divide to get the number

Advantage:

Simple, arithmetic operation required

Disadvantage:

Dealing with long number seems to be very hard to achieve

New approach:

Using built-in function:

Convert number to string and use built-in function to reverse the string then return

Advantage:

Dealing with big number is a piece of cake

Disadvantage:

Some programming language doesn't have built-in reverse string function
Require some simple knowledge when dealing with string

Handmade reverse function:

Instead of using built-in function, we implement our own reverse function

Advantage:

Like using built-in function

Disadvantage:

Dealing string in some low-level programming language may require strong basic CS knowledge