19 lines
404 B
Crystal
19 lines
404 B
Crystal
describe Array do
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describe "#knapsack" do
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it "works with costs of one" do
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ans = [1,2,3,4,5,6].shuffle.knapsack(3) do |i|
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{1, i}
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end
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ans[1].sort!
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ans.should eq({15, [4,5,6]})
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end
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it "works in the non-greedy case" do
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ans = [{2, 2}, {2, 2}, {3, 3}].shuffle.knapsack(4) do |i|
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i
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end
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ans.should eq({4, [{2,2},{2,2}]})
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end
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end
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end
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