Answer / jugad

Defining a variable means declare its data type , i.e
declaration of data type is very important in c it may be
int, float , long , unsigned,
and initialisation is not so important if you are not
initilize any variable compiler just initialize some garbage
value to that variable.
Courtesy:
http://answerwale.co.cc/?p=24#comment-20

Answer / nikhil saxena

We only declare & initialize the variables in our code but
we never define them.

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.find the output of the following program? char*myfunc(char*ptr) { ptr +=3; return (ptr); } int main() { char*x,*y; x="HELLO"; y=myfunc(x); printf("y = %s ",y); return 0; }

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print the palindrome numbers in between 0 to n

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