SUPyF2 P.-Mid-Exam/30 June 2019/2. - Tasks Planner

"""
Programming Fundamentals Mid Exam - 30 June 2019 Group 2
Check your code: https://judge.softuni.bg/Contests/Practice/Index/1683#1

SUPyF2 P.-Mid-Exam/30 June 2019/2. - Tasks Planner

Problem:
Create a program that helps you organize your daily tasks.
First, you are going to receive the hours each task takes оn a single line, separated by space, in the following format:
"{task1} {task2} {task3}… {taskn}"
Each task takes from 1 to 5 hours. If its time is set to 0 – it is completed. If its time is set to a negative number –
the task is dropped.
Then you will start receiving commands until you read the "End" message. There are six possible commands:
• "Complete {index}"
o   Find the task on this index in your collection and complete it, if the index exists.
• "Change {index} {time}"
o   Replace the time needed of the task on the given index with the time given, if the index exists.
• "Drop {index}"
o   Drop the task on the given index, setting its hour to -1, if the index exists.
• "Count Completed"
o   Print the number of completed tasks.
• "Count Incomplete"
o   Print the number of incomplete tasks (this doesn’t include the dropped tasks).
• "Count Dropped"
o   Print the number of dropped tasks (this doesn’t include the incomplete tasks).
In the end, print the incomplete tasks on a single line, separated by a single space in the following format:
"{task1} {task2} {task3}… {taskn}"
Input
• On the 1st line you are going to receive the time of each task, separated by a single space.
• On the next lines, until the "End" command is received, you will be receiving commands.
Output:
• Print the tasks in the format described above.

Examples:
Input:
1 -1 2 3 4 5
Complete 4
Change 0 4
Drop 3
Count Dropped
End

Output:
2
4 2 5

Comments:
First, we receive the command "Complete 4" and we to complete the task on index 4. After this command,
the task collection looks like this:
1 -1 2 3 0 5
Afterwards, we receive the "Change 0 4" command and we need to change the time of the task on index 0.
The collection looks like this now:
4 -1 2 3 0 5
After, we receive the "Drop 3" command, which means we need to drop the task on index 3. The collection looks like this:
4 -1 2 -1 0 5
Then, we receive the "Count Dropped" command. The result is 2 as we have only 2 dropped tasks.
In the end, we print all of the incomplete tasks. This is the result collection:
4 2 5

Input:
1 2 3 4 5 4 0 3 2 1
Complete 0
Complete 1
Complete 2
Drop 3
Change 4 1
Count Completed
End

Output:
4
1 4 3 2 1
"""
tasks = [int(task) for task in input().split()]

while True:
    command = input().split()
    if command[0] == "End":
        break
    elif command[0] == "Complete":
        index = int(command[1])
        if 0 <= index < len(tasks):
            tasks[index] = 0

    elif command[0] == "Change":
        index = int(command[1])
        if 0 <= index < len(tasks):
            tasks[index] = int(command[2])

    elif command[0] == "Drop":
        index = int(command[1])
        if 0 <= index < len(tasks):
            tasks[index] = -1

    elif command[0] == "Count":
        if command[1] == "Completed":
            print(len([item for item in tasks if item == 0]))
        elif command[1] == "Incomplete":
            print(len([item for item in tasks if item > 0]))
        elif command[1] == "Dropped":
            print(len([item for item in tasks if item == -1]))

print(*[item for item in tasks if item > 0])