Which of the following is not required of a loop control...

Which of the following is not required of a loop control variable in a correctly working loop?
a. It is reset to its initial value before the loop ends.
b. It is initialized before the loop starts.
c. It is tested.
d. It is altered in the loop body.

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Key Concepts

Loop Control Variable

A loop control variable is used to determine and manage the number of iterations in a loop. It is central to controlling the execution flow, dictating when the loop should continue and when it should terminate based on conditions evaluated during the loop’s execution.

Initialization

Initialization refers to the process of setting the loop control variable to a starting value before the loop begins. This step ensures that the variable holds a defined and expected value, forming the basis for the subsequent evaluations and iterations within the loop.

Condition Testing

Condition testing involves evaluating a boolean expression using the loop control variable to decide whether the loop should continue. This check is performed before or during each iteration, ensuring that the loop terminates when the specified condition is no longer met.

Iteration Update

Iteration update signifies altering the loop control variable within the loop body, typically by incrementing or decrementing its value. This update is essential for progressing toward the termination condition, preventing the loop from running indefinitely.

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