Output and please explain

Question

#include<stdio.h>

int main()

{

char *s = "Geeks Quiz";

int n = 7;

printf("%.*s", n, s);

return 0;

}

Answer 1

OUTPUT: Geeks Q

EXPLANATION

char *s = "Geeks Quiz";

Store the string "Geeks Quiz" in memory and stores the base address in pointer s.

printf("%.*s",n,s);

1. .number:  Its a precision which specifies the minimum number of character/digits to be printed.
2. .*: The precision is not specified in the format string, but as an additional integer value argument preceding the argument that has to be formatted.
3. Therefore, the above line will print 7 characters (as specified by n) of string s.

SOURCE: Tutorials Point (Click on link to read more about formatting in printf)

Ouput after executing the above code on Ideoneis here.