Once the code is run, the while loop ensures that the farmer removes dirt until the pile is done.
The while loop is an iteration Statement which accepts a condition, then statement which should be executed if the statement is true.
The loop runs until the condition stated in the while loop becomes false.
The condition is that, while there is Pile; remove dirt ;
Therefore, the farmer will remove dirt as long as there is pile, and the program terminates once the pile is done.
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