Problem 2
Write four different \(C++\) statements that each add 1 to integer variable \(x\).
Problem 7
Write single \(C++\) statements that do the following: a. Input integer variable \(x\) with \(\operatorname{cin}\) and \(\gg>\) b. Input integer variable \(y\) with \(\operatorname{cin}\) and \(\gg>\) c. Set integer variable 1 to 1 d. Set integer variable power to 1 e. Multiply variable power by x and assign the result to power. f. Postincrement variable i by 1 g. Determine whether is less than or equal to \(y\). h. Output integer variable power with cout and \(<<\)
Problem 9
Identify and correct the errors in each of the following: a. while \((c<=5)\) \\{ product \(*=c\) \\[ \mathrm{c}++ \\] b. \(\operatorname{cin} \ll<\) value \(\mathbf{c}\) if \((\text { gender }=1\) cout \(<<\) "Woman" \(<<\) end 1 else: cout \(<<\) "Man" \(<<\) end 1
Problem 10
What is wrong with the following while repetition statement? \\[ \begin{array}{c} \text { while }\left(\begin{array}{rl} z & >\theta \end{array}\right) \\ \text { Sum }+=z \end{array} \\]
Problem 11
Identify and correct the error(s) in each of the following:
a. if \((\text { age }>=65)\) cout \(<<\) "Age is greater than or equal to
\(65^{\prime \prime}<<\) end 1 else cout \(<<\) "Age is less than \(65<<\) endl"
b. if \((\text { age }>=65)\) cout \(<<\) "Age is greater than or equal to
\(65^{\prime \prime}<<\) end 1 else; cout \(<<\) "Age is less than \(65<<\) end \(1
"\)
c. int \(x=1,\) total;
while \((x<=10)\) \\{
\\[
\begin{array}{l}
\operatorname{total}+x ; \\
x++;
\end{array}
\\]
\\}
d. While \((x<=10 \theta)\)
\\[
\begin{array}{l}
\operatorname{total}+x ; \\
x++;
\end{array}
\\]
e. while \((y>0)\) \\{
cout \(<
Problem 13
Perform each of these steps: a. Read the problem statement. b. Formulate the algorithm using pseudocode and top-down, stepwise refinement. c. Write a \(C++\) program. d. Test, debug and execute the \(C++\) program. Drivers are concerned with the mileage obtained by their automobiles. One driver has kept track of several tankfuls of gasoline by recording miles driven and gallons used for each tankful. Develop a \(C++\) program that uses a while statement to input the miles driven and gallons used for each tankful. The program should calculate and display the miles per gallon obtained for each tankful and print the combined miles per gallon obtained for all tankfuls up to this point.
Problem 14
Perform each of these steps: a. Read the problem statement. b. Formulate the algorithm using pseudocode and top-down, stepwise refinement. c. Write a \(C++\) program. d. Test, debug and execute the \(C++\) program. Develop a \(C++\) program that will determine whether a department-store customer has exceeded the credit limit on a charge account. For each customer, the following facts are available: a. Account number (an integer) b. Balance at the beginning of the month c. Total of all items charged by this customer this month d. Total of all credits applied to this customer's account this month e. Allowed credit limit The program should use a while statement to input each of these facts. calculate the new balance \((=\text { beginning balance }+\) charges credits) and determine whether the new balance exceeds the customer's credit limit. For those customers whose credit limit is exceeded, the program should display the customer's account number, credit limit, new balance and the message "Credit limit Exceeded.
Problem 15
Perform each of these steps: a. Read the problem statement. b. Formulate the algorithm using pseudocode and top-down, stepwise refinement. c. Write a \(C++\) program. d. Test, debug and execute the \(C++\) program. One large chemical company pays its salespeople on a commission basis. The salespeople each receive \(\$ 200\) per week plus 9 percent of their gross sales for that week. For example, a salesperson who sells \(\$ 5000\) worth of chemicals in a week receives \(\$ 200\) plus 9 percent of \(\$ 5000,\) or a total of \(\$ 650 .\) Develop a \(\mathrm{C}++\) program that uses a while statement to input each salesperson's gross sales for last week and calculates and displays that salesperson's earnings. Process one salesperson's figures at a time.
Problem 17
The process of finding the largest number (i.e., the maximum of a group of numbers) is used frequently in computer applications. For example, a program that determines the winner of a sales contest inputs the number of units sold by each salesperson. The salesperson who sells the most units wins the contest. Write a pseudocode program, then a \(\mathrm{C}++\) program that uses a while statement to determine and print the largest number of 10 numbers input by the user. Your program should use three variables, as follows: counter: A counter to count to 10 (i.e., to keep track of how many numbers have been input and to determine when all 10 numbers have been processed). number: The current number input to the program. largest: The largest number found so far.
Problem 18
Write a C++ program that uses a while statement and the tab escape sequence \t to print the following table of values: N 10*N 100*N 1000*N 1 10 100 1000 2 20 200 2000 3 30 300 3000 4 40 400 4000 5 50 500 5000
