Schedule Mode Builder

Schedule Mode Builder

Moderate
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You are given an unordered list of tasks. Each task is as string, which incudes a start and end of task and has a view "hh:mm-hh:mm". Tasks are unique. You function must return chronologically sorted, filtered list of tasks, which can be scheduled without overlapping. For this purpose, you are also given a mode as an integer, which tells you the rule of choosing non-overlapping tasks.

Modes:

  • 1: earliest start among available, (if a few variants) shortest duration;
  • 2: earliest start among available, (if a few variants) longest duration;
  • 3: longest total duration of chosen tasks, (if a few variants) larger number of tasks done, (if a few variants) earliest;
  • 4: larger number of tasks done, (if a few variants) longest total duration of chosen tasks, (if a few variants) earliest.

At animation tasks are always sorted as earliest start + shortest duration. Each task is positioned on the first "row", where it is not overlapping with the previous task in a "row". If the current task is overlapping with all existed "rows" - the new "row" is started. For example, for the input [['09:00-10:00', '09:50-10:10', '10:00-11:00', '09:00-09:20', '10:50-11:10'], 2], the animation (solved) would be the following:

example

Input: A list of tasks as strings (str).

Output: A sorted filtered list of tasks as strings (str).

Examples:

assert schedule(
    ["09:00-10:00", "09:50-10:10", "10:00-11:00", "09:00-09:20", "10:50-11:10"], 1
) == ["09:00-09:20", "09:50-10:10", "10:50-11:10"]
assert schedule(
    ["09:00-10:00", "09:50-10:10", "10:00-11:00", "09:00-09:20", "10:50-11:10"], 2
) == ["09:00-10:00", "10:00-11:00"]
assert schedule(
    ["09:00-10:00", "09:50-10:10", "10:00-11:00", "09:00-09:20", "10:50-11:10"], 3
) == ["09:00-10:00", "10:00-11:00"]
assert schedule(
    ["09:00-10:00", "09:50-10:10", "10:00-11:00", "09:00-09:20", "10:50-11:10"], 4
) == ["09:00-09:20", "09:50-10:10", "10:50-11:10"]
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