From adaaf8b744b17c4dd4c2cb029a9d4f6d5bc9f589 Mon Sep 17 00:00:00 2001
From: ahmedgamal2212 <ahmedgemy2212@gmail.com>
Date: Wed, 26 Apr 2023 17:44:42 +0200
Subject: [PATCH] Add solution to day 26

---
 .../26- Add Digits (Ahmed Gamal).js           | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 04- April/26- Add Digits/26- Add Digits (Ahmed Gamal).js

diff --git a/04- April/26- Add Digits/26- Add Digits (Ahmed Gamal).js b/04- April/26- Add Digits/26- Add Digits (Ahmed Gamal).js
new file mode 100644
index 000000000..5f40dcb5d
--- /dev/null
+++ b/04- April/26- Add Digits/26- Add Digits (Ahmed Gamal).js	
@@ -0,0 +1,33 @@
+// Autor: Ahmed Gamal
+
+// the idea for this solution is so simple, we will loop until the number is less than 10
+// in each iteration we will calculate the sum of the digits of the number
+
+/**
+ * @param {number} num
+ * @return {number}
+ */
+var addDigits = function(num) {
+    // loop until the number is less than 10
+    while(num > 10) {
+        // calculate the sum of the digits of the number
+        // x: copy of the number to not change the original number
+        // sum: the sum of the digits of the number
+
+        // loop until the number is 0
+        // in each iteration we will add the last digit to the sum
+        // and remove the last digit from the number
+
+        let x = num, sum = 0;
+        while(x) {
+            sum += x % 10;
+            x = Math.floor(x / 10);
+        }
+
+        // update the number with the sum
+        num = sum;
+    }
+
+    // return the number
+    return num;
+};
\ No newline at end of file