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Chapter 5: Problem 11

What three actions do count-controlled loops typically perform using the counter variable?

Short Answer

Expert verified
A count-controlled loop typically performs three main actions using the counter variable: 1) Initialize the counter variable with a starting value, which sets the initial state of the loop; 2) Test the counter variable against a specified condition to determine if the loop should continue or terminate; and 3) Update the counter variable after each iteration to progress towards satisfying the end condition, eventually terminating the loop.

Step by step solution

01

Action 1: Initialize the counter variable

The first action performed in a count-controlled loop is initializing the counter variable with the starting value, which is usually a number. This value sets the initial state of the loop and determines where the iteration begins.
02

Action 2: Test the counter variable

The second action performed is to test the counter variable against a specified condition. The condition can be any logical expression, but it typically checks if the counter variable has reached or exceeded the final value. If the condition evaluates to true, the loop continues to execute its block of code, otherwise, the loop terminates.
03

Action 3: Update the counter variable

The third action is updating the counter variable after each iteration of the loop, which can involve incrementing or decrementing its value. This update step ensures that the loop progresses towards the end condition, eventually satisfying the condition and terminating the loop.

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