chore: rename sMap and tMap

Author: txtran224

lesson_13/maps_java/maps_app/src/main/java/com/codedifferently/lesson13/Lesson13.java

@@ -9,16 +9,16 @@ public class Lesson13 {
    * https://leetcode.com/problems/permutation-difference-between-two-strings
    */
   public int findPermutationDifference(String s, String t) {
-    HashMap<Character, Integer> smap = new HashMap<>();
-    HashMap<Character, Integer> tmap = new HashMap<>();
+    HashMap<Character, Integer> sMap = new HashMap<>();
+    HashMap<Character, Integer> tMap = new HashMap<>();
     int sum = 0;
     for (int i = 0; i < s.length(); i++) {
-      smap.put(s.charAt(i), i);
-      tmap.put(t.charAt(i), i);
+      sMap.put(s.charAt(i), i);
+      tMap.put(t.charAt(i), i);
     }
-    for (char key : smap.keySet()) {
-      int val1 = smap.get(key);
-      int val2 = tmap.get(key);
+    for (char key : sMap.keySet()) {
+      int val1 = sMap.get(key);
+      int val2 = tMap.get(key);
       sum += Math.abs(val1 - val2);
     }
     return sum;

lesson_13/maps_ts/src/lesson13.ts

@@ -3,13 +3,13 @@
  * https://leetcode.com/problems/permutation-difference-between-two-strings
  */
 export function findPermutationDifference(s: string, t: string): number {
-  const smap = new Map<string, number>();
+  const sMap = new Map<string, number>();
   let sum = 0;
   for (let i = 0; i < s.length; i++) {
-    smap.set(s.charAt(i), i);
+    sMap.set(s.charAt(i), i);
   }
-  for (const key of smap.keys()) {
-    const val1 = smap.get(key);
+  for (const key of sMap.keys()) {
+    const val1 = sMap.get(key);
     if (val1 !== undefined) {
       sum += Math.abs(val1 - t.indexOf(key));
     }