mejorar version

Author: Ing-Brayan-Martinez

lib/ordering/quick_sort.dart

@@ -8,17 +8,6 @@ void quickSort(List<int> data) {
     _internalQuickSort(data, lower, partitionIndex - 1);
     _internalQuickSort(data, partitionIndex + 1, upper);
   }
-  return null;
-}
-
-void _swap(List<int> data, int first, int second) {
-  var value1 = data[first];
-  var value2 = data[second];
-  var temp = value1;
-  value1 = value2;
-  value2 = temp;
-  data[first] = value1;
-  data[second] = value2;
 }
 
 int _partition(List<int> data, int lower, int upper) {
@@ -28,11 +17,11 @@ int _partition(List<int> data, int lower, int upper) {
   for (var j = lower; j < upper; j++) {
     if (data[j] <= pivot) {
       i++;
-      _swap(data, i, j);
+      _swap(i, j, data);
     }
   }
 
-  _swap(data, i + 1, upper);
+  _swap(i + 1, upper, data);
   return (i + 1);
 }
 
@@ -47,3 +36,13 @@ void _internalQuickSort(List<int> data, int lower, int upper) {
     _internalQuickSort(data, partitionIndex + 1, upper);
   }
 }
+
+void _swap(int first, int second, List<int> data) {
+  var value1 = data[first];
+  var value2 = data[second];
+  final temp = value1;
+  value1 = value2;
+  value2 = temp;
+  data[first] = value1;
+  data[second] = value2;
+}