Multiples of 3 or 5 solutions

Author: PaulNoth

multiples-of-3-or-5/MultiplesOf3Or5.scala

@@ -0,0 +1,4 @@
+object MultiplesOf3Or5 {   
+  def solution(number: Long): Long = 
+    (3L until number).filter(i => i % 3L == 0L || i % 5L == 0L).sum
+}

multiples-of-3-or-5/Solution.java

@@ -0,0 +1,44 @@
+public class Solution {
+
+  public int solution(int number) {
+    int result = 0;
+	if (number > 3)
+	{
+		int min = 3;
+		int count = (number - 1) / 3;
+		int max = number - 1;
+		while (max % 3 != 0)
+		{
+			max--;
+		}
+		int tempResult = count * (min + max) / 2;
+		result += tempResult;
+	}
+	if (number > 5)
+	{
+		int min = 5;
+		int count = (number - 1) / 5;
+		int max = number - 1;
+		while (max % 5 != 0)
+		{
+			max--;
+		}
+		int tempResult = count * (min + max) / 2;
+		result += tempResult;
+	}
+	if (number > 15)
+	{
+		int min = 15;
+		int count = (number - 1) / 15;
+		int max = number - 1;
+		while (max % 15 != 0)
+		{
+			max--;
+		}
+		int tempResult = count * (min + max) / 2;
+		result -= tempResult;
+	}
+
+	return result;
+  }
+}

multiples-of-3-or-5/multiples.js

@@ -0,0 +1,9 @@
+function solution(number){
+  let result = 0;
+  for (let i = 3; i < number; i++) {
+    if(i % 3 === 0 || i % 5 === 0) {
+      result += i;
+    }
+  }
+  return result;
+}