C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN: 9781337102087
Author: D. S. Malik
Publisher: Cengage Learning
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Chapter 6, Problem 18SA
(a)
Program Plan Intro
To determine the possible output, when the function call mystery(4, -5) will be generated.
(b)
Program Plan Intro
To determine the possible output, when the function call mystery(-8, 9) will be generated.
(c)
Program Plan Intro
To determine the possible output, when the function call mystery(2,3) will be generated.
(d)
Program Plan Intro
To determine the possible output, when the function call mystery(-2,-4) will be generated.
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Consider the following C++ function. int mystery(int num1, int num2){if (num1 > 0){for (int i = 1; i <= num1; i++)num2 = num2 * i;return num2;}else if (num2 > 0){for (int i = 0; i <= num2; i++)num1 = num1 + i;return num1;}return 0;}What is the output of the following statements?a. cout << mystery(4, -5) << endl;b. cout << mystery(-8, 9) << endl;c. cout << mystery(2, 3) << endl;d. cout << mystery(-2, -4) << endl;
C Program:
An integer number is said to be a perfect number if its factors, including 1 (but not the number itself), sum to the number. For example, 6 is a perfect number because 6 = 1 + 2 + 3. I have written a function called isPerfect (see below), that determines whether parameter passed to the function is a perfect number. Use this function in a C program that determines and prints all the perfect numbers between 1 and 1000. Print the factors of each perfect number to confirm that the number is indeed perfect.
// isPerfect returns true if value is perfect integer,
// i.e., if value is equal to sum of its factors
int isPerfect(int value)
{
int factorSum = 1; // current sum of factors
// loop through possible factor values
for (int i = 2; i <= value / 2; ++i) {
// if i is factor
if (value % i == 0) {
factorSum += i; // add to sum
}
}
// return true if value is equal to sum of factors
if (factorSum == value) {
return…
Write the reccurence relation for the following function (in C-style code)
void T(n){
if(n>1){
int j;
for(j = n; j>1; j = j/2);
T(n/2); T(n/2);
}
}
Chapter 6 Solutions
C++ Programming: From Problem Analysis to Program Design
Ch. 6 - Mark the following statements as true or false:
a....Ch. 6 - Determine the value of each of the following...Ch. 6 - Determine the value of each of the following...Ch. 6 - Consider the following function definition. (4, 6)...Ch. 6 - Consider the following statements:
Which of the...Ch. 6 - Prob. 8SACh. 6 - Prob. 9SACh. 6 - Why do you need to include function prototypes in...Ch. 6 - Prob. 11SACh. 6 - Consider the following function: (4)...
Ch. 6 - Prob. 15SACh. 6 - What is the output of the following program? (4)
Ch. 6 - Write the definition of a function that takes as...Ch. 6 - Prob. 18SACh. 6 - How would you use a return statement in a void...Ch. 6 - Prob. 20SACh. 6 - Prob. 21SACh. 6 - What is the output of the following program?...Ch. 6 - Write the definition of a void function that takes...Ch. 6 - Write the definition of a void function that takes...Ch. 6 - Prob. 8PECh. 6 - The following formula gives the distance between...Ch. 6 - Write a program that takes as input five numbers...Ch. 6 - When you borrow money to buy a house, a car, or...Ch. 6 - Consider the definition of the function main:...Ch. 6 - The statements in the following program are not in...Ch. 6 - Write a program that outputs inflation rates for...Ch. 6 - Write a program to convert the time from 24-hour...Ch. 6 - Jason opened a coffee shop at the beach and sells...
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