Added a new function called printCumulativeDuration that calculates and prints the cumulative durations for finished tasks, unfinished tasks, and overall tasks.
Called the printCumulativeDuration function within the printTasks function to display the cumulative duration information after the task list.
printCumulativeDuration
that calculates and prints the cumulative durations for finished tasks, unfinished tasks, and overall tasks.printCumulativeDuration
function within theprintTasks
function to display the cumulative duration information after the task list.Resolves #11