Question

1. Which of the following libraries must be included to run the following code:

srand(time(0));

random = rand();

(select ALL that are required and do not select any that are NOT required).

2.

Given the code:

int numbers[5] = {1,2,3,4,5};

Select all from the following answers which can be used (in C) to change the values in the numbers array to 2, 3, 4, 5 and 6.

A. for (int i = 0; i < 5; i++) {
    numbers[i] = numbers[i] + 1;
}

B. numbers[1]=2;

   numbers[2]=3;

   numbers[3]=4;

   numbers[4]=5;

   numbers[5]=6;

  C. numbers = {2,3,4,5,6};

  D. numbers = numbers + 1;

A. <stdlib.h>

B. <time.h>

C. <stdio.h>

D. <math.h>

Answer 1

1.
D. <math.h>


2.
A.
for (int i = 0; i < 5; i++) {
    numbers[i] = numbers[i] + 1;
}
B.
numbers[1]=2;
   numbers[2]=3;
   numbers[3]=4;
   numbers[4]=5;
   numbers[5]=6;