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Diffstat (limited to 'challenge-249/e-choroba/python/ch-1.py')
| -rwxr-xr-x | challenge-249/e-choroba/python/ch-1.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/challenge-249/e-choroba/python/ch-1.py b/challenge-249/e-choroba/python/ch-1.py new file mode 100755 index 0000000000..8804c18a26 --- /dev/null +++ b/challenge-249/e-choroba/python/ch-1.py @@ -0,0 +1,20 @@ +#! /usr/bin/python3 +from collections import Counter + +def equal_pairs(*ints): + seen = Counter(ints) + pairs = [] + for c in seen: + if seen[c] % 2 == 1: + return [] + else: + pairs += map(lambda _i: [c, c], range(seen[c] // 2)) + return pairs + +assert equal_pairs(3, 2, 3, 2, 2, 2) == [[3, 3], [2, 2], [2, 2]], 'Example 1' +assert equal_pairs(1, 2, 3, 4) == [], 'Example 2' +assert equal_pairs(-1, -1, -2, -2) == [[-1, -1], [-2, -2]], 'Negative numbers' +assert equal_pairs(1, 1, 1, 1, 2, 2, 2, 2) == [ + [1, 1], [1, 1], [2, 2], [2, 2]], \ + 'More than once' +assert equal_pairs(1, 1, 1, 1, 2, 2, 2, 2, 1) == [], 'More than once odd'; |
