Pallendrom string

[GAWRAHUL]

program in c for to check whether the string is pallendrom or not using stack.h file and stack

[Nepomuk]

Hi!

This sounds like homework... what have you done so far? We won't give you a solution but we'll be happy to help you find one.

Greetings,
Nepomuk

[whodgson]

If the palindrome was one word (a string of characters) you could make one pointer point to the first letter and a second pointer point to the last letter and compare *p1 with *p2 from within the body of a for loop. If they are == increment p1(++) and decrement p2(--) and continue to compare for equality until the loop condition (< length of the word/2)is reached or the comparison fails. The same principle could be applied to a sentence.

[newb16]

This will work, but won't be accepted because it doesn't use (! turbo-c header) stack.h . The solution that may pass is to push the entire string into the stack and then pop it back comparing to it again, so that the first character in the string is compared to the last pushed ( = first popped ) into the stack.

[whodgson]

@newb16
Yes... I read 'not' in the wrong context.
But in any case I could not have suggested a way of doing it using a stack so I learnt something.