clean up 46

fishercoder1534 · fishercoder1534 · commit d44ea941fe79 · 2017-05-14T06:54:20.000-07:00
diff --git a/src/main/java/com/stevesun/solutions/_46.java b/src/main/java/com/stevesun/solutions/_46.java
@@ -15,19 +15,19 @@
  [3,2,1]
  ]*/
 public class _46 {
-    static class Accepted_solution {
-        //this solution has a recursive function that has a return type
+    static class AcceptedSolution {
+        //this solution has a backtracking function that has a return type
         public static List<List<Integer>> permute(int[] nums) {
             List<List<Integer>> result = new ArrayList();
             List<Integer> init = new ArrayList<>();
             result.add(init);
-            return recursive(result, nums, 0);
+            return backtracking(result, nums, 0);
         }
 
-        private static List<List<Integer>> recursive(List<List<Integer>> result, int[] nums,
-                int pos) {
-            if (pos == nums.length)
+        private static List<List<Integer>> backtracking(List<List<Integer>> result, int[] nums, int pos) {
+            if (pos == nums.length) {
                 return result;
+            }
             List<List<Integer>> newResult = new ArrayList();
             for (List<Integer> eachList : result) {
                 for (int i = 0; i <= eachList.size(); i++) {
@@ -37,11 +37,11 @@ private static List<List<Integer>> recursive(List<List<Integer>> result, int[] n
                 }
             }
             result = newResult;
-            return recursive(result, nums, pos + 1);
+            return backtracking(result, nums, pos + 1);
         }
     }
     
-    static class Accepted_solution_with_void_type {
+    static class AcceptedSolutionWithVoidType {
         public static List<List<Integer>> permute(int[] nums) {
             List<List<Integer>> result = new ArrayList();
             List<Integer> init = new ArrayList<>();
@@ -60,7 +60,7 @@ private static void recursive(List<List<Integer>> result, int[] nums, int pos) {
                     newResult.add(newList);
                 }
             }
-            /**You'll have to use the two lines, instead of this line: result = newResult; otherwise, it won't work!!! Fuck!*/
+            /**You'll have to use the two lines, instead of this line: result = newResult; otherwise, it won't work!!!*/
             result.clear();
             result.addAll(newResult);
             
