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Add doctests for fractional knapsack (#10891)

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* Add doctests for fractional knapsack

* Update greedy_methods/fractional_knapsack.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Run doctests

* Update greedy_methods/fractional_knapsack.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update greedy_methods/fractional_knapsack.py

---------

Co-authored-by: Christian Clauss <cclauss@me.com>
This commit is contained in:
Hardik Pawar 2023-10-24 20:06:24 +05:30 committed by GitHub
parent 28f4c16132
commit aeee0f42a5
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greedy_methods/fractional_knapsack.py
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@ -6,6 +6,30 @@ def frac_knapsack(vl, wt, w, n):
"""
>>> frac_knapsack([60, 100, 120], [10, 20, 30], 50, 3)
240.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 10, 4)
105.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 8, 4)
95.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6], 8, 4)
60.0
>>> frac_knapsack([10, 40, 30], [5, 4, 6, 3], 8, 4)
60.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 0, 4)
0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 8, 0)
95.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], -8, 4)
0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 8, -4)
95.0
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 800, 4)
130
>>> frac_knapsack([10, 40, 30, 50], [5, 4, 6, 3], 8, 400)
95.0
>>> frac_knapsack("ABCD", [5, 4, 6, 3], 8, 400)
Traceback (most recent call last):
...
TypeError: unsupported operand type(s) for /: 'str' and 'int'
"""
r = sorted(zip(vl, wt), key=lambda x: x[0] / x[1], reverse=True)