Added Maximum Difference by Remapping a Digit

Author: varunu28

Easy/Maximum Difference by Remapping a Digit.java

@@ -0,0 +1,25 @@
+class Solution {
+    public int minMaxDifference(int num) {
+        char digitsOne[] = String.valueOf(num).toCharArray();
+        char digitsTwo[] = String.valueOf(num).toCharArray();
+        char firstDigitOne = digitsOne[0];
+        char firstDigitTwo = digitsOne[0];
+        for (int i = 0; i < digitsOne.length; i++) {
+            if (digitsOne[i] != '9') {
+                firstDigitOne = digitsOne[i];
+                break;
+            }
+        }
+        for (int i = 0; i < digitsOne.length; i++) {
+            if (digitsOne[i] == firstDigitOne) {
+                digitsOne[i] = '9';
+            }
+        }
+        for(int i = 0; i < digitsOne.length; i++) {
+            if (digitsTwo[i] == firstDigitTwo) {
+                digitsTwo[i] = '0';
+            }
+        }
+        return Integer.parseInt(String.valueOf(digitsOne)) - Integer.parseInt(String.valueOf(digitsTwo));
+    }
+}