Chapter 5.4, Problem 5.20CP

Explanation of Solution

Accumulator:

Accumulator is the variable which is used to accumulate the total of the numbers in the running total.

• The running total is that which is used to calculate the sum of numbers that is accumulated in a separate variable for each iteration of a loop.
• The variable that is used to keep the total is referred as accumulator.

Diagrammatic representation to set the accumulator:

• In the above diagram, the accumulator variable is initialized to 0 at the first step.
• This step is most essential one, because each times the loop iterates it adds the value to the accumulator...