From c11e57d8ae3334b6e7793c2e1770e8edca1507fe Mon Sep 17 00:00:00 2001
From: FiTeen <isfiteen@icloud.com>
Date: Fri, 20 Dec 2019 20:08:14 +0800
Subject: [PATCH] feat: delete duplicate code

---
 BubbleSort/README.md     | 12 ++++--------
 BubbleSort/bubble_sort.c | 18 ++++++++++--------
 QuickSort/README.md      |  7 -------
 QuickSort/quick_sort.c   |  1 -
 4 files changed, 14 insertions(+), 24 deletions(-)

diff --git a/BubbleSort/README.md b/BubbleSort/README.md
index 3796260..c0884f4 100644
--- a/BubbleSort/README.md
+++ b/BubbleSort/README.md
@@ -18,13 +18,11 @@
 #### C语言
 ```c
 void bubble_sort(int arr[], int n) {
-    int i, j, tmp;
+    int i, j;
     for (i = 0; i < n - 1; i++) {
         for (j = 0; j < n - i - 1; j++) {
             if (arr[j] > arr[j + 1]) {
-                tmp = arr[j];
-                arr[j] = arr[j + 1];
-                arr[j + 1] = tmp; 
+                swap(arr, j, j+1);
             }
         }
     }
@@ -40,14 +38,12 @@ void bubble_sort(int arr[], int n) {
 
 ```c
 void bubble_sort_quicker(int arr[], int n) {
-    int i, j, tmp, flag;
+    int i, j, flag;
     for (i = 0; i < n - 1; i++) {
         flag = 0;
         for (j = 0; j < n - i - 1; j++) {
             if (arr[j] > arr[j + 1]) {
-                tmp = arr[j];
-                arr[j] = arr[j + 1];
-                arr[j + 1] = tmp;
+                swap(arr, j, j+1);
                 flag = 1;
             }
         }
diff --git a/BubbleSort/bubble_sort.c b/BubbleSort/bubble_sort.c
index 3171e56..a6926d1 100644
--- a/BubbleSort/bubble_sort.c
+++ b/BubbleSort/bubble_sort.c
@@ -1,27 +1,29 @@
 #include <stdio.h>
 
+void swap(int arr[], int i, int j) {
+    int temp = arr[i];
+    arr[i] = arr[j];
+    arr[j] = temp;
+}
+
 void bubble_sort(int arr[], int n) {
-    int i, j, tmp;
+    int i, j;
     for (i = 0; i < n - 1; i++) {
         for (j = 0; j < n - i - 1; j++) {
             if (arr[j] > arr[j + 1]) {
-                tmp = arr[j];
-                arr[j] = arr[j + 1];
-                arr[j + 1] = tmp; 
+                swap(arr, j, j+1);
             }
         }
     }
 }
 
 void bubble_sort_quicker(int arr[], int n) {
-    int i, j, tmp, flag;
+    int i, j, flag;
     for (i = 0; i < n - 1; i++) {
         flag = 0;
         for (j = 0; j < n - i - 1; j++) {
             if (arr[j] > arr[j + 1]) {
-                tmp = arr[j];
-                arr[j] = arr[j + 1];
-                arr[j + 1] = tmp;
+                swap(arr, j, j+1);
                 flag = 1;
             }
         }
diff --git a/QuickSort/README.md b/QuickSort/README.md
index 05c56b1..24d7c26 100644
--- a/QuickSort/README.md
+++ b/QuickSort/README.md
@@ -32,13 +32,6 @@
 这里取序列的第一个元素为基准。
 
 ```c
-/* 交换位置函数，交换 i 和 j 的位置 */
-void swap(int arr[], int i, int j) {
-    int temp = arr[i];
-    arr[i] = arr[j];
-    arr[j] = temp;
-}
-
 /* 选取序列的第一个元素作为基准 */
 int select_pivot(int arr[], int low) {
     return arr[low];
diff --git a/QuickSort/quick_sort.c b/QuickSort/quick_sort.c
index 309aa60..99372b0 100644
--- a/QuickSort/quick_sort.c
+++ b/QuickSort/quick_sort.c
@@ -2,7 +2,6 @@
 #include <stdlib.h>
 #include <time.h>
 
-/* 交换位置函数，交换 i 和 j 的位置 */
 void swap(int arr[], int i, int j) {
     int temp = arr[i];
     arr[i] = arr[j];