26- Add Digits

04- April/26- Add Digits/26- Add Digits (Ibrahim Khalid).cpp

@@ -0,0 +1,22 @@
+// author : Ibrahim Khalid
+class Solution {
+public:
+    int addDigits(int num) {
+        // str to convert num(int) to string to can count digits
+        string str=to_string(num);
+        int sum;
+        // if Digitalis number equal 1 break from loop
+        while(str.size()!=1){
+            sum=0;
+            // to summation digits
+        for(int i=0;i<str.size();i++){
+            //to convert from char to int
+            sum+=(str[i]-'0');
+        }
+        // to convert summation to string to check  digitalis number
+         str=to_string(sum);
+
+        }
+        return sum;
+    }
+};