C | Macro & Preprocessor | Question 7

Output?

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# include <stdio.h>
# define scanf  "%s Geeks Quiz "
int main()
{
   printf(scanf, scanf);
   return 0;
}

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(A) Compiler Error

(B) %s Geeks Quiz

(C) Geeks Quiz

(D) %s Geeks Quiz  Geeks Quiz



 Answer: (D) 

Explanation: After pre-processing phase of compilation, printf statement will become.

   printf(“%s Geeks Quiz “,  “%s Geeks Quiz “);

Now you can easily guess why output is “%s Geeks Quiz  Geeks Quiz”.




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