String reversal algorithm

[Pita32]

Ttt

[k5054]

Something like:

let pos1 = first_of(str)
let pos2 = last_of(str)

while ( pos1 < pos2 )
do
while ( isdigit(str[pos1]) AND pos1 < pos2 )
do
incr pos1
done

while ( isdigit(str[pos2]) and pos1 < pos2 )
do
decr pos2
done

having got here, we know that either

pos1 and pos2 are non-digits, so we can swap them

or pos2 < pos1, which means we are done (while loop will terminate)

if ( pos1 < pos2)
then
swap(str[pos1], str[pos2])
incr pos1
decr pos2
endif
done

Keep Calm and Carry On

[Richard Deeming]

Editing your message to remove your question after it has been answered is extremely rude. If you think it's going to stop your teacher / boss from finding out that you're cheating on your homework / work, you're sadly mistaken.

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"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

[Lost User]

Why do you think his moniker starts with "Pita"?

[Member_14793535]

Good question