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The number of times that the loop control expression is evaluated is one more than the number of iterations in a pretest loop.

a) True
b) False

User Aright
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1 Answer

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Final answer:

The statement is true regarding pretest loops, such as 'while' or 'for' loops, where the control expression is evaluated one more time than the loop's iterations to determine if the loop should continue or terminate.

Step-by-step explanation:

The statement "The number of times that the loop control expression is evaluated is one more than the number of iterations in a pretest loop" is true. In a pretest loop like a 'while' loop or a 'for' loop in many programming languages, the loop control expression is evaluated before the body of the loop is executed on each iteration. This means the control expression will be evaluated first and will continue to be evaluated before each subsequent iteration to decide whether or not to execute the loop body again. If the loop runs 'n' times (which is the number of iterations), the control expression is evaluated 'n+1' times. This last evaluation occurs when the condition is no longer satisfied, thus preventing another loop iteration. This is a critical concept to grasp when programming to avoid off-by-one errors and understand the sequence of events within a loop's execution.

User Osca
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