Merge pull request #6706 from iRetr0o/main

Reto #4 - Kotlin

Retos/Reto #4 - PRIMO, FIBONACCI Y PAR [Media]/kotlin/iRetr0o.kt

@@ -0,0 +1,34 @@
+fun main() {
+    checkNumber(3)
+    checkNumber(7)
+}
+
+fun isPrime(n: Int): Boolean {
+    if (n < 2) return false
+    for (i in 2 ..< n) {
+        if (n % i == 0) return false
+    }
+    return true
+}
+
+fun isFibonacci(n: Int): Boolean {
+    var a = 0
+    var b = 1
+    while (a < n) {
+        val temp = a
+        a = b
+        b += temp
+    }
+    return a == n
+}
+
+fun isEven(n: Int): Boolean {
+    return n % 2 == 0
+}
+
+fun checkNumber(n: Int) {
+    val prime = if (isPrime(n)) "primo" else "no es primo"
+    val fibonacci = if (isFibonacci(n)) "fibonacci" else "no es fibonacci"
+    val even = if (isEven(n)) "par" else "impar"
+    println("$n es $prime, $fibonacci y es $even")
+}