C Programming
What will be printed when this program is executed?int f(int x){ if(x <= 4) return x; return f(--x);}void main(){ printf("%d ", f(7)); }

1 2 3 4
Runtime error
4 5 6 7
4
Syntax error

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

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