Your mission

Implement drop_tokens, which plays tokens into the columns of an upright board and returns the board as rows of text.

See it in action

drop_tokens(4, 3, [(1, "x"), (2, "o"), (1, "x")])

['....', '.x..', '.xo.']

drop_tokens(2, 2, [(0, "a"), (0, "b"), (0, "c"), (5, "d")])

['b.', 'a.']

drop_tokens(3, 0, [(1, "z")])

[]

Your checklist

• The board is width cells wide and height cells tall, both 0 or more. Every cell starts as ..
• Each move is a tuple (column, token), columns numbered from 0 on the left. The token falls to the lowest empty cell of that column.
• Moves are played in the order given. A move is skipped when its column is full or outside the board. column can be any int.
• token is always a single character other than ..
• Return the board as a list of height strings of width characters, top row first.
• Do not modify moves.

Your mission

Implement drop_tokens, which plays tokens into the columns of an upright board and returns the board as rows of text.

See it in action

drop_tokens(4, 3, [(1, "x"), (2, "o"), (1, "x")])

['....', '.x..', '.xo.']

drop_tokens(2, 2, [(0, "a"), (0, "b"), (0, "c"), (5, "d")])

['b.', 'a.']

drop_tokens(3, 0, [(1, "z")])

[]

Your checklist

• The board is width cells wide and height cells tall, both 0 or more. Every cell starts as ..
• Each move is a tuple (column, token), columns numbered from 0 on the left. The token falls to the lowest empty cell of that column.
• Moves are played in the order given. A move is skipped when its column is full or outside the board. column can be any int.
• token is always a single character other than ..
• Return the board as a list of height strings of width characters, top row first.
• Do not modify moves.