How to find the median among three given numbers in Kotlin

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/*
    Computes the median of three integers.
    The median is the value that is neither the minimum nor the maximum.

    Formula:
      median = a + b + c - min(a, b, c) - max(a, b, c)
*/
fun medianOfThreeNumbers(a: Int, b: Int, c: Int): Int {
    // Determine the minimum of the three numbers
    val minVal = when {
        a <= b && a <= c -> a
        b <= a && b <= c -> b
        else -> c
    }

    // Determine the maximum of the three numbers
    val maxVal = when {
        a >= b && a >= c -> a
        b >= a && b >= c -> b
        else -> c
    }

    // The median is the remaining value
    return a + b + c - minVal - maxVal
}

fun main() {
    // Test cases
    println("The median of [1, 1, 1] is ${medianOfThreeNumbers(1, 1, 1)}")
    println("The median of [10, 3, 7] is ${medianOfThreeNumbers(10, 3, 7)}")
    println("The median of [10, -10, -10] is ${medianOfThreeNumbers(10, -10, -10)}")
    println("The median of [3, 3, 5] is ${medianOfThreeNumbers(3, 3, 5)}")
}


/*
run:

The median of [1, 1, 1] is 1
The median of [10, 3, 7] is 7
The median of [10, -10, -10] is -10
The median of [3, 3, 5] is 3

*/

 



answered Mar 26 by avibootz
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