C Programming
A preprocessor command

comes before the first executable statement
need not start on a new line
need not start on the first column
has # as the first character

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C Programming
What is the right choice, if the following loop is implemented?void main(){ int num = 0; do{ --num; printf("%d", num); }while( ++num >= 0 );}

The program will not enter into the loop.
Prints the value of 0 one time only.
There will be a compilation error reported.
The loop will run infinitely many times.
A run time error will be generated.

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