From e0a3189f91c2af5c0d82d413ddd5c272594951a2 Mon Sep 17 00:00:00 2001
From: MolDuM <39506381+MolDuM@users.noreply.github.com>
Date: Wed, 4 Jan 2023 14:56:16 +0800
Subject: [PATCH] Update array.c

3 changes:
1. In the enlarge part, I didn't change because I didn't find a good way to deal with the local variable and the clear definition. malloc is commonly used in LeetCode so I think it is not bad for a beginner.
2. I changed the initialization of the second array to make it in the same style as C++.
3. In the enlarge part in main, I deleted the code of pointer free to match the array operations. I also changed the operate array in the later part because the enlarged array cannot be assigned to the older array name.

BTW, sorry for updating so late. Reading different version documents and book are really tiring and boring.
---
 codes/c/chapter_array_and_linkedlist/array.c | 30 ++++++--------------
 1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/codes/c/chapter_array_and_linkedlist/array.c b/codes/c/chapter_array_and_linkedlist/array.c
index 6217a566..300124a7 100644
--- a/codes/c/chapter_array_and_linkedlist/array.c
+++ b/codes/c/chapter_array_and_linkedlist/array.c
@@ -76,16 +76,7 @@ int main() {
     printf("数组 arr = ");
     printArray(arr, size);
 
-    int arr2[5] = { 1, 3, 2, 5, 4 };
-    printf("数组 arr2 = ");
-    printArray(arr2, size);
-
-    int* nums = (int *)malloc(sizeof(int) * size);
-    nums[0] = 1;
-    nums[1] = 3;
-    nums[2] = 2;
-    nums[3] = 5;
-    nums[4] = 4;
+    int nums[5] = { 1, 3, 2, 5, 4 };
     printf("数组 nums = ");
     printArray(nums, size);
     
@@ -96,29 +87,26 @@ int main() {
     /* 长度扩展 */
     int enlarge = 3;
     int* res = extend(nums, size, enlarge);
-    int* temp = nums;
-    nums = res;
-    free(temp);
     size += enlarge;
     printf("将数组长度扩展至 8 ，得到 nums = ");
-    printArray(nums, size);
+    printArray(res, size);
     
     /* 插入元素 */
-    insert(nums, size, 6, 3);
+    insert(res, size, 6, 3);
     printf("在索引 3 处插入数字 6 ，得到 nums = ");
-    printArray(nums, size);
+    printArray(res, size);
 
     /* 删除元素 */
-    removeItem(nums, size, 2);
+    removeItem(res, size, 2);
     printf("删除索引 2 处的元素，得到 nums = ");
-    printArray(nums, size);
+    printArray(res, size);
     
     /* 遍历数组 */
-    traverse(nums, size);
+    traverse(res, size);
     
     /* 查找元素 */
-    int index = find(nums, size, 3);
-    printf("在 nums 中查找元素 3 ，得到索引 = %d\n", index);
+    int index = find(res, size, 3);
+    printf("在 res 中查找元素 3 ，得到索引 = %d\n", index);
 
     return 0;
 }