Hey guys Im slowly starting to learn C and i was quite interested in this problem...
If i entered a line of characters say a sentence how would i be able to print out the reverse of the input. Eg
Please enter string:
I hate debugging.
.gniggubed etah I (This is what the result should look like)
Any ideas.....
There are many ways to do it. Read one character at a time recursively. Read the entire line into a large buffer and walk backwards from the end. Give it a shot!
Quzah.
Hope is the first step on the road to disappointment.
Store it into an array and print the array backwards.
When I first saw this, I wanted to say it was wrong, but it's not. I was looking forOriginally Posted by slowprogrammer
.gniggudeb etah I
But then the rest of the characters would have to be backwards too! (I guess the "i" already is) ho ho ho.
Mainframe assembler programmer by trade. C coder when I can.
A stack is a nice structure for reversing stuff.
So interested that you want someone else to tell you how to solve the problem instead of attempting it on your own, then when stuck ask a specific question. I hope your school assignment isn't due too soon.
a little c++ here, but you can figure it out...
Code:int main(){ char text[255]; int i=0; cout>>"press z to stop"<<endl; while(i<255 || ){// dont uverrun the buffer char k; cin>>k; if(k =='z') break; } for( ; i >0; i--){ cout<<text[i]; } return 0; }
Don't hand out solutions or the newbies will not learn anything! I urge you to read the Homework Policy.
1) Stop providing complete solutions
2) Stop writing C++ code on the C forum
3) Stop living with the impression that C and C++ are similar so it doesn't really matter which one you use
4) Stop assuming that the input will not contain the letter 'z'
Last edited by claudiu; 05-04-2010 at 12:04 PM.
1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
3. Get rid of conio.h and other antiquated DOS crap headers.
4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.
5) What is that while loop's OR supposed to be doing?
Quzah.
Hope is the first step on the road to disappointment.
How about using string.length() and a for loop to reverse it? C++ is cool, it's quite amazing what you can get to work with just playing with it!
If we wanted C++, we'd be on the C++ forum.
Quzah.
Hope is the first step on the road to disappointment.
The same can be said about C and probably most languages.
1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
3. Get rid of conio.h and other antiquated DOS crap headers.
4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.
Whoops, sorry about that. Was not trying to down any other languages.
It's not your fault, you didn't bring up C++ on the C forum.
That said, we'd like to hear from the OP again. Show us what you've got slo-pro!
Quzah.
Hope is the first step on the road to disappointment.
