feat: imported Java Permutation Difference Calculator and converted into TypeScrpit;

Author: “A1-4U2T1NN”

lesson_13/maps_ts/src/lesson13.ts

@@ -3,5 +3,16 @@
  * https://leetcode.com/problems/permutation-difference-between-two-strings
  */
 export function findPermutationDifference(s: string, t: string): number {
-  return 0;
-}
+    let permuDifference = 0;
+    // Created a counter to track Permutation Difference
+    for (let i = 0; i < s.length; i++) {
+      // Loops through each letter in string 's'
+      const difference = s.indexOf(s.charAt(i)) - t.indexOf(s.charAt(i));
+      // Subtracts possitional value of string 't' from the possitional value of string 's'
+      permuDifference += Math.abs(difference);
+      // Converts difference into absolute value and adds it to the Permutation Difference
+    }
+    return permuDifference;
+    // Returns the total Permutation Difference value
+  }
+