add 2520

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_2520.java

@@ -0,0 +1,18 @@
+package com.fishercoder.solutions;
+
+public class _2520 {
+    public static class Solution1 {
+        public int countDigits(int num) {
+            int original = num;
+            int sum = 0;
+            while (num != 0) {
+                int digit = num % 10;
+                num /= 10;
+                if (original % digit == 0) {
+                    sum++;
+                }
+            }
+            return sum;
+        }
+    }
+}