10 lines
238 B
Swift
10 lines
238 B
Swift
func remaining(_ total: Int, _ done: Int) -> Int {
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return max(0, total - done)
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}
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precondition(remaining(4,1) == 3)
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precondition(remaining(4,4) == 0)
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precondition(remaining(4,5) == 0)
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precondition(remaining(0,0) == 0)
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print("Passed")
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