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Least Change#67
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JimmyQuenichet wants to merge 2 commits into
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Newby555
reviewed
May 6, 2021
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| s.add(equation_1 == target, | ||
| equation_2 == min_coins, | ||
| min_coins > 0, |
Contributor
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Should this comma be removed if this is the last item in .add()?
Newby555
reviewed
May 6, 2021
| @@ -0,0 +1,27 @@ | |||
| from z3 import * | |||
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| def least_change(coins, target): | |||
Contributor
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This file should be empty for the user to write their code in
grantg012
reviewed
May 7, 2021
| @@ -0,0 +1,49 @@ | |||
| import unittest | |||
| from z3 import * | |||
| from .least_change import * | |||
Contributor
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Is there a reason this is a relative import?
grantg012
reviewed
May 7, 2021
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| class ChangeTest(unittest.TestCase): | ||
| def test_single_coin_change(self): | ||
| self.assertEqual(str(least_change([1, 5, 10, 25, 100], 25)), "[10 = 0, 25 = 1, 100 = 0, 5 = 0, min_coins = 1, " |
Contributor
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Is there a reason you're converting it to a string rather than making a direct comparison between two lists? Seems a little error prone if the formatting was to change
grantg012
reviewed
May 7, 2021
| min_coins = Int("min_coins") | ||
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| # Fill in the solver with the necessary constraints | ||
| for i in range(len(coins)): |
Contributor
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I would recommend using zip() and/or enumerate() rather than indexing
grantg012
reviewed
May 7, 2021
| def test_another_possible_change_without_unit_coins_available(self): | ||
| self.assertEqual(str(least_change([4, 5], 27)), "[4 = 3, 5 = 3, min_coins = 6]") | ||
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| def test_no_coins_make_0_change(self): |
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Intuitively, I would this a solver should return 0 for every coin rather than None (for not solveable)
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