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leaderboard

Your mission

Implement leaderboard, which returns player names ranked by score, highest first, with ties settled by name.

See it in action

leaderboard([("mira", 12), ("otto", 30), ("ines", 12)]): ['otto', 'ines', 'mira']
leaderboard([("Bo", -1), ("al", -1), ("cy", 0)]): ['cy', 'Bo', 'al']
leaderboard([]): []

Your checklist

entries is a list of (name, score) tuples and can be empty. Every name is a different string, and score can be any int, negative included.
Return a list of the names only, from the highest score to the lowest.
Names that share a score come in ascending order, the order the < operator gives on strings.
Do not modify entries.

Constraints

Expected file: leaderboard.py
Allowed functions: None. Write every helper yourself.

Run the tests to grade your code

19 tests

Empty list gives an empty ranking
A single entry
Distinct scores, highest first
Entries already in ranking order
Entries in reverse ranking order
Every score equal, names ascending
Two entries with the same score
Tie on the highest score
Tie on the lowest score
Several groups of ties
Ties compare uppercase before lowercase
A name that is a prefix of another comes first
Names with digits compare character by character
Negative scores, closest to zero first
Positive, zero and negative scores
Very large scores
Scores compared as numbers
Twelve players with repeated scores
entries is left unchanged

Python

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Learn
Exercises
Challenges
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leaderboard

Your mission

Implement leaderboard, which returns player names ranked by score, highest first, with ties settled by name.

See it in action

leaderboard([("mira", 12), ("otto", 30), ("ines", 12)]): ['otto', 'ines', 'mira']
leaderboard([("Bo", -1), ("al", -1), ("cy", 0)]): ['cy', 'Bo', 'al']
leaderboard([]): []

Your checklist

entries is a list of (name, score) tuples and can be empty. Every name is a different string, and score can be any int, negative included.
Return a list of the names only, from the highest score to the lowest.
Names that share a score come in ascending order, the order the < operator gives on strings.
Do not modify entries.

Constraints

Expected file: leaderboard.py
Allowed functions: None. Write every helper yourself.

Run the tests to grade your code

19 tests

Empty list gives an empty ranking
A single entry
Distinct scores, highest first
Entries already in ranking order
Entries in reverse ranking order
Every score equal, names ascending
Two entries with the same score
Tie on the highest score
Tie on the lowest score
Several groups of ties
Ties compare uppercase before lowercase
A name that is a prefix of another comes first
Names with digits compare character by character
Negative scores, closest to zero first
Positive, zero and negative scores
Very large scores
Scores compared as numbers
Twelve players with repeated scores
entries is left unchanged

Variables will appear here

Python