Merge pull request #3566 from ziameraj16/ziameraj16-challenge-100

Kotlin Solution for Triangle sum problem

2 files changed, 55 insertions, 0 deletions

diff --git a/challenge-100/ziameraj16/README.md b/challenge-100/ziameraj16/README.md
index 9f7ffc3abd..816c1a823c 100644
--- a/challenge-100/ziameraj16/README.md
+++ b/challenge-100/ziameraj16/README.md
@@ -25,3 +25,30 @@ Enter comma separated elements of line 4
 5,1,7,2
 Output: 8
 ```
+
+## Kotlin Solution
+
+To compile the code run
+```java
+kotlinc TriangleSumKotlin.kt
+```
+To run
+```java
+kotlin TriangleSumKotlin
+```
+### Example
+```bash
+/perlweeklychallenge-club/challenge-100/ziameraj16/kotlin$ kotlinc TriangleSumKotlin.kt
+/perlweeklychallenge-club/challenge-100/ziameraj16/kotlin$ kotlin TriangleSumKotlin
+Enter number of rows in the triangle
+4
+Enter comma separated elements of line 1
+3
+Enter comma separated elements of line 2
+3,1
+Enter comma separated elements of line 3
+5,2,3
+Enter comma separated elements of line 4
+4,3,1,3
+Output: 7
+```
diff --git a/challenge-100/ziameraj16/kotlin/TriangleSumKotlin.kt b/challenge-100/ziameraj16/kotlin/TriangleSumKotlin.kt
new file mode 100644
index 0000000000..407527c533
--- /dev/null
+++ b/challenge-100/ziameraj16/kotlin/TriangleSumKotlin.kt
@@ -0,0 +1,28 @@
+import java.util.*
+import java.util.stream.Collectors
+
+object TriangleSumKotlin {
+    @JvmStatic
+    fun main(args: Array<String>) {
+        val scanner = Scanner(System.`in`)
+        println("Enter number of rows in the triangle")
+        val numberOfRows = scanner.nextLine().toInt()
+        val list: MutableList<List<Int>?> = ArrayList<List<Int>?>()
+        var i = 1
+        while (i <= numberOfRows) {
+            println("Enter comma separated elements of line $i")
+            val rowElements = Arrays.stream(scanner.nextLine().split(",".toRegex()).toTypedArray()).map { s: String? -> Integer.valueOf(s) }.collect(Collectors.toList())
+            list.add(rowElements)
+            i++
+        }
+        println("Output: " + triangleSum(list))
+    }
+
+    fun triangleSum(list: List<List<Int>?>): Int {
+        var sum = 0
+        for (row in list) {
+            sum += Collections.min(row)
+        }
+        return sum
+    }
+}