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CodilityのTrainingを解いてみたその5

Posted at 2017-08-21

問題 FrogJmp

使用言語：Swift3

ソースコード

public func solution3_2(_ X : Int, _ Y : Int, _ D : Int) -> Int {
        let shou = (Y - X) / D
        let doubleShou = (Double)(Y - X) / (Double)(D)
        return doubleShou - (Double)(shou) == 0.0 ? shou : shou + 1
    }

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