C-Library-Functions Easy Questions and Answers

What is function srand(unsigned)?

Sets the seed for rand

Which among the following mathematical function do not have a “double” return-type?

both ceil(x); and floor(x);

What will be the output of the following C code?

#include <stdio.h>
#include <math.h>
    void main()
    {
        int n = sqrt(16);
        printf("%d\n", n);
    }

What will be the output of the following C code?

#include <stdio.h>
#include <math.h>
    void main()
    {
        int n = fabs(-65);
        printf("%d\n", n);
    }

What will be the output of the following C code?

#include <stdio.h>
#include <math.h>
    void main()
    {
        int num = pow(4, 2);
        printf("%d\n", num);
    }

C-Library-Functions