Create schedules for weekly leagues where games consist of head-to-head matchups, and where some players get byes each week. Players are allowed to have specific weeks where they request to have byes, but beyond this scheduling is done to ensure that byes are evenly distributed and that players have variety in the opponents they face (it should roughly look like round robin scheduling).
See example in Main.hs.
ghc Main.hs
./Main
Output:
Week 1
-------
Player 1 vs. Bye
Player 2 vs. Substitute
Player 3 vs. Player 6
Player 4 vs. Bye
Player 5 vs. Bye
Player 6 vs. Player 3
Substitute vs. Player 2
Week 2
-------
Player 1 vs. Player 6
Player 2 vs. Bye
Player 3 vs. Bye
Player 4 vs. Player 5
Player 5 vs. Player 4
Player 6 vs. Player 1
Week 3
-------
Player 1 vs. Player 3
Player 2 vs. Player 6
Player 3 vs. Player 1
Player 4 vs. Bye
Player 5 vs. Bye
Player 6 vs. Player 2
Week 4
-------
Player 1 vs. Player 2
Player 2 vs. Player 1
Player 3 vs. Bye
Player 4 vs. Player 5
Player 5 vs. Player 4
Player 6 vs. Bye
Week 5
-------
Player 1 vs. Bye
Player 2 vs. Player 5
Player 3 vs. Player 6
Player 4 vs. Bye
Player 5 vs. Player 2
Player 6 vs. Player 3
Week 6
-------
Player 1 vs. Player 4
Player 2 vs. Bye
Player 3 vs. Player 5
Player 4 vs. Player 1
Player 5 vs. Player 3
Player 6 vs. Bye