Finishes day 1018

src/main/kotlin/Day1018.kt

@@ -0,0 +1,44 @@
+import kotlin.math.abs
+
+/*
+This problem was asked by Microsoft.
+
+Given a clock time in hh:mm format, determine, to the nearest degree, the angle between the hour and the minute hands.
+
+Bonus: When, during the course of a day, will the angle be zero?
+ */
+
+fun main(args: Array<String>) {
+    println(getBetterAngle(5, 30))
+    println(getBetterAngle(9, 0))
+    println(getBetterAngle(12, 0))
+    println(getBetterAngle(15, 15))
+    println(getBetterAngle(3, 15))
+
+    println("====")
+    find0angle()
+}
+
+fun to12(h:Int) = h % 12
+
+fun getMinutes(m: Int) = m*360/60
+
+fun getSimpleHours(h: Int) = to12(h)*360/12
+
+fun getBetterHours(h: Int, m:Int) = to12(h)*360/12 + (360/12)*m/60
+
+fun getAngle(h: Int, m: Int) = abs(getBetterHours(h, m) - getMinutes(m))
+
+fun getBetterAngle(h: Int, m: Int) : Int {
+    return if(abs(getBetterHours(h, m) - getMinutes(m)) < 180)
+        abs(getBetterHours(h, m) - getMinutes(m))
+    else
+        360 - abs(getBetterHours(h, m) - getMinutes(m))
+}
+
+fun find0angle() {
+    for(h in 0..11)
+        for(m in 0..59)
+            if(getBetterAngle(h ,m) == 0) println("$h:$m")
+
+}