Merge pull request #718 from t3chkid/main

Adds solution for 739. Daily Temperatures in Kotlin

Author: Ahmad-A0

kotlin/739-Daily-Temperatures.kt

@@ -0,0 +1,18 @@
+import java.util.*
+
+class Solution {
+    fun dailyTemperatures(temperatures: IntArray): IntArray {
+        if (temperatures.size == 1) return intArrayOf(0)
+        val stack = Stack<Int>()
+        val resultantArray = IntArray(temperatures.size)
+        var poppedElement: Int
+        for (i in 0..temperatures.lastIndex) {
+            while (stack.isNotEmpty() && temperatures[stack.peek()] < temperatures[i]) {
+                poppedElement = stack.pop()
+                resultantArray[poppedElement] = i - poppedElement
+            }
+            stack.push(i)
+        }
+        return resultantArray
+    }
+}