C Programming
Which of the following is the correct way of declaring a float pointer:

float ptr;
None of these
*float ptr;
float *ptr;

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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.
The loop will run infinitely many times.
A run time error will be generated.
Prints the value of 0 one time only.
There will be a compilation error reported.

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