Thread: How does this program work??

Recently, i came across a c language code snippet. That is:

Code:

#include<stdio.h>
#include<conio.h>
int main()
{ 
    int a=3, b = 5; 
    printf(&a["Ya!Hello! how is this? %s\n"], &b["junk/super"]); 
    printf(&a["WHAT%c%c%c %c%c %c !\n"], 1["this"], 2["beauty"],0["tool"],0["is"],3["sensitive"],4["CCCCCC"]); 
    getch();
}

This program produced output:

Hello! how is this? super
That is C !

I can't under stand how this works? I've used Microsoft Visual C++ compiler. Please explain this code.

Also suggest some websites where can I learn such type of advanced programming.

Thanks in advance.

refer to the following link, you will find the solution

C Puzzle : Level 3

I am not sure but i'll give it a try.
1st printf
Mind that a has value 3.So what it does is to retrieve from string "Ya!Hello..." the substring from third position,but you have to imagine the string as an array.So element at zero position is Y.Then the %s is replaced by the substring of where b points to which again (with same logic) points to s,so %s will be replaced from s till the end of the string,thus with super.

2nd printf
Same logic.But now prints characters instead of string.The first %c is replaced by the a-rd(3rd) element of WHAT which is T and so on..

Ya i referred the link and it was a bit explanatory. But i still don't understand how the printf prints the output in this program. Can u please xplain it in detail??

Yup ur logic seems to be correct....well but it is obvious that one doesn't code like this but these snippets throw some good mind games......

From what i understood....

"Ya!Hello! how is this? %s\n" is stream of characters which is equivalent to char *p="Ya!Hello! how is this? %s\n".
Here you are writing p+3 which means discard first three characters which will be "Hello! how is this? %s\n". Same logic applies to every other part of code.
On first printf it is %s and on second it is %c so you will be having only one character from each word.

Originally Posted by Dushyant

Yup ur logic seems to be correct....well but it is obvious that one doesn't code like this but these snippets throw some good mind games......

Glad you agree

Originally Posted by sana.iitkgp

From what i understood....

"Ya!Hello! how is this? %s\n" is stream of characters which is equivalent to char *p="Ya!Hello! how is this? %s\n".
Here you are writing p+3 which means discard first three characters which will be "Hello! how is this? %s\n". Same logic applies to every other part of code.
On first printf it is %s and on second it is %c so you will be having only one character from each word.

Yes,you understood correct.I could not call it however stream of characters but a sequence or characters(or a string )