91Ó°ÊÓ

Write four different \(C++\) statements that each add 1 to integer variable \(x.\)

Write C++ statements to accomplish each of the following: a) In one statement, assign the sum of the current value of \(x\) and \(y\) to \(z\) and postincrement the value of \(x\) b) Determine whether the value of the variable count is greater than \(10 .\) If it is, print "Count is greater than \(10 . "\) c) Predecrement the variable \(x\) by \(1,\) then subtract it from the variable total. d) Calculate the remainder after \(q\) is divided by divisor and assign the result to q. Write this statement two different ways.

(Dangling-else Problem) State the output for each of the following when \(x\) is 9 and \(y\) is 11 and when \(x\) is 11 and \(y\) is \(9 .\) The compiler ignores the indentation in a \(C++\) program. The \(C++\) compiler always associates an else with the previous if unless told to do otherwise by the placement of braces \\{\\}\(.\) On first glance, you may not be sure which if and else match, so this is referred to as the "dangling-else" problem. We eliminated the indentation from the following code to make the problem more challenging. [Hint: Apply indentation conventions you've learned.] (Dangling-else Problem) State the output for each of the following when \(x\) is 9 and \(y\) is 11 and when \(x\) is 11 and \(y\) is \(9 .\) The compiler ignores the indentation in a \(C++\) program. The \(C++\) compiler always associates an else with the previous if unless told to do otherwise by the placement of braces \\{\\}\(.\) On first glance, you may not be sure which if and else match, so this is referred to as the "dangling-else" problem. We eliminated the indentation from the following code to make the problem more challenging. [Hint: Apply indentation conventions you've learned.]

\(4.26 \quad\) forward. For example, each of the following five-digit integers is a palindrome: 12321,55555 45554 and \(11611 .\) Write a program that reads in a five-digit integer and determines whether it's a palindrome. [Hint: Use the division and modulus operators to separate the number into its individual digits.

(Checkerboard Pattern of Asterisks) Write a program that displays the following checkerboard pattern. Your program must use only three output statements, one of each of the following forms: cout << "* "; cout << ' '; cout << endl;

\((\text { Multiples of } 2\) with an Infinite Loop) Write a program that prints the powers of the integer \(2,\) namely \(2,4,8,16,32,64,\) etc. Your while loop should not terminate (i.e., you should create an infinite loop). To do this, simply use the keyword true as the expression for the while statement. What happens when you run this program?

\(\quad\) (Calculating a Circle's Diameter, Circumference and Area) Write a program that reads the radius of a circle (as a double value) and computes and prints the diameter, the circumference and the area. Use the value 3.14159 for \(\pi\)

(Sides of a Triangle) Write a program that reads three nonzero double values and determines and prints whether they could represent the sides of a triangle.

(Sides of a Right Triangle) Write a program that reads three nonzero integers and determines and prints whether they're the sides of a right triangle.