devry comp122 week 6 homework

COMP122

Week 6 Homework

Complete the following problems.

1. Write C++ statements to do the following:

a. Declare an array alpha of 15 components of type int.

b. Output the value of the 10^th component of the alpha array.

c. Set the value of the 5^th component of the alpha array to 35.

d. Set the value of the 9^th component of the alpha array to the sum of the 6^th and 13^thcomponents of the alpha array.

e. Set the value of the 4^th component of the alpha array to three times the value of the 8^th component minus 57.

f. Output alpha so that five components appear on each line.

2. What is stored in the list array after the following code executes?

int list[5];

for(int j = 0; j < 5; j++)

{

list[j] = 2 * j + 5;

if (j % 2 == 0)
{

list[j] = list[j] – 3;
}

}

3. What does array index out of bounds mean? What can happen if this occurs in your program?

4. Write C++ statements to define and initialize the following arrays using appropriate data types:

a. An array of heights has 6 components which have the following values: 5.5, 5.8, 6.3, 6.6, 4.9, 5.9.

b. An array of weights has 4 components which have the values: 140, 165, 190, 207.

c. An array of symbols which contains the following characters: ‘$’, ‘%’, ‘@’, ‘!’, ‘|’, ‘&’.

d. An array of the seasons which contains “Spring”, “Summer”, “Fall”, “Winter”.

5. Given the following declaration, what is stored in the 8^th element of the array?

int list[10] = {1, 2, 3, 4, 5};

6. When an array is passed as an actual parameter to a function, what is really being passed in to the function? Why are arrays passed this way?

7. Write a for loop to initialize the following array (int data[10]) with the values 10, 9, 8… 1.

8. Given an array of 10 doubles named data, write a loop that loads the array with user input.

9. Given an array of 100 doubles named data, write a loop that creates the sum of all the array elements.

10. Write a loop that finds the smallest element in an integer array called data containing 100 elements.

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