Question 2

1.      # include <stdio.h> 2.      main() 3.      { 4.      }

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   Explain the purpose of line 1 (# include <stdio.h>) of the above source program.

  (4 marks)
stdio.h, which stands for "standard input/output header", is the header in the C standard library that contains macro definitions, constants, and declarations of functions and types used for various standard input and output operations.

http://en.wikipedia.org/wiki/Stdio.h