Unify the naming of the C codes.

codes/c/chapter_array_and_linkedlist/array.c

@@ -74,11 +74,11 @@ int main() {
     int size = 5;
     int arr[5];
     printf("数组 arr = ");
-    PrintArray(arr, size);
+    printArray(arr, size);
 
     int nums[5] = { 1, 3, 2, 5, 4 };
     printf("数组 nums = ");
-    PrintArray(nums, size);
+    printArray(nums, size);
     
     /* 随机访问 */
     int randomNum = randomAccess(nums, size);
@@ -89,17 +89,17 @@ int main() {
     int* res = extend(nums, size, enlarge);
     size += enlarge;
     printf("将数组长度扩展至 8 ，得到 nums = ");
-    PrintArray(res, size);
+    printArray(res, size);
     
     /* 插入元素 */
     insert(res, size, 6, 3);
     printf("在索引 3 处插入数字 6 ，得到 nums = ");
-    PrintArray(res, size);
+    printArray(res, size);
 
     /* 删除元素 */
     removeItem(res, size, 2);
     printf("删除索引 2 处的元素，得到 nums = ");
-    PrintArray(res, size);
+    printArray(res, size);
     
     /* 遍历数组 */
     traverse(res, size);

codes/c/chapter_computational_complexity/worst_best_time_complexity.c

@@ -41,7 +41,7 @@ int main(int argc, char *argv[]) {
         int *nums = randomNumbers(n);
         int index = findOne(nums, n);
         printf("\n数组 [ 1, 2, ..., n ] 被打乱后 = ");
-        PrintArray(nums, n);
+        printArray(nums, n);
         printf("数字 1 的索引为 %d\n", index);
         // 释放堆区内存
         if (nums != NULL) {

codes/c/chapter_sorting/bubble_sort.c

@@ -7,7 +7,7 @@
 #include "../include/include.h"
 
 /* 冒泡排序 */
-void bubble_sort(int nums[], int size) {
+void bubbleSort(int nums[], int size) {
     // 外循环：待排序元素数量为 n-1, n-2, ..., 1
     for (int i = 0; i < size - 1; i++)
     {
@@ -25,7 +25,7 @@ void bubble_sort(int nums[], int size) {
 }
 
 /* 冒泡排序（标志优化）*/
-void bubble_sort_with_flag(int nums[], int size) {
+void bubbleSortWithFlag(int nums[], int size) {
     // 外循环：待排序元素数量为 n-1, n-2, ..., 1
     for (int i = 0; i < size - 1; i++)
     {
@@ -51,14 +51,14 @@ void bubble_sort_with_flag(int nums[], int size) {
 int main() {
     int nums[6] = {4, 1, 3, 1, 5, 2};
     printf("冒泡排序后: ");
-    bubble_sort(nums, 6);
+    bubbleSort(nums, 6);
     for (int i = 0; i < 6; i++)
     {
         printf("%d ", nums[i]);
     }
 
     printf("\n优化版冒泡排序后: ");
-    bubble_sort_with_flag(nums, 6);
+    bubbleSortWithFlag(nums, 6);
     for (int i = 0; i < 6; i++)
     {
         printf("%d ", nums[i]);

codes/c/chapter_tree/binary_tree.c

@@ -10,34 +10,33 @@
 int main() {
     /* 初始化二叉树 */
     // 初始化结点
-    TreeNode* n1 = NewTreeNode(1);
-    TreeNode* n2 = NewTreeNode(2);
-    TreeNode* n3 = NewTreeNode(3);
-    TreeNode* n4 = NewTreeNode(4);
-    TreeNode* n5 = NewTreeNode(5);
+    TreeNode* n1 = newTreeNode(1);
+    TreeNode* n2 = newTreeNode(2);
+    TreeNode* n3 = newTreeNode(3);
+    TreeNode* n4 = newTreeNode(4);
+    TreeNode* n5 = newTreeNode(5);
     // 构建引用指向（即指针）
     n1->left = n2;
     n1->right = n3;
     n2->left = n4;
     n2->right = n5;
     printf("初始化二叉树\n");
-    PrintTree(n1);
+    printTree(n1);
 
     /* 插入与删除结点 */
-    TreeNode* P = NewTreeNode(0);
+    TreeNode* P = newTreeNode(0);
     // 在 n1 -> n2 中间插入结点 P
     n1->left = P;
     P->left = n2;
     printf("插入结点 P 后\n");
-    PrintTree(n1);
+    printTree(n1);
 
     // 删除结点 P
     n1->left = n2;
     // 释放内存
     free(P);
     printf("删除结点 P 后\n");
-    PrintTree(n1);
+    printTree(n1);
 
     return 0;
 }
-

codes/c/chapter_tree/binary_tree_bfs.c

@@ -52,15 +52,15 @@ int main() {
     // 这里借助了一个从数组直接生成二叉树的函数
     int nums[] = {1, 2, 3, NIL, 5, 6, NIL};
     int size = sizeof(nums) / sizeof(int);
-    TreeNode *root = ArrayToTree(nums, size);
+    TreeNode *root = arrToTree(nums, size);
     printf("初始化二叉树\n");
-    PrintTree(root);
+    printTree(root);
 
     /* 层序遍历 */
     // 需要传入数组的长度
     int *arr = levelOrder(root, &size);
     printf("层序遍历的结点打印序列 = ");
-    PrintArray(arr, size);
+    printArray(arr, size);
 
     return 0;
 }

codes/c/chapter_tree/binary_tree_dfs.c

@@ -43,10 +43,10 @@ int main() {
     /* 初始化二叉树 */
     // 这里借助了一个从数组直接生成二叉树的函数
     int nums[] = {1, 2, 3, 4, 5, 6, 7};
-    int size = sizeof(nums) / sizt ceof(int);
-    TreeNode *root = ArrayToTree(nums, size);
+    int size = sizeof(nums) / sizeof(int);
+    TreeNode *root = arrToTree(nums, size);
     printf("初始化二叉树\n");
-    PrintTree(root);
+    printTree(root);
 
     /* 前序遍历 */
     // 初始化辅助数组
@@ -54,19 +54,19 @@ int main() {
     size = 0;
     preOrder(root, &size);
     printf("前序遍历的结点打印序列 = ");
-    PrintArray(arr, size);
+    printArray(arr, size);
 
     /* 中序遍历 */
     size = 0;
     inOrder(root, &size);
     printf("中序遍历的结点打印序列 = ");
-    PrintArray(arr, size);
+    printArray(arr, size);
 
     /* 后序遍历 */
     size = 0;
     postOrder(root, &size);
     printf("后序遍历的结点打印序列 = ");
-    PrintArray(arr, size);
+    printArray(arr, size);
 
     return 0;
 }

codes/c/include/include_test.c

@@ -9,24 +9,24 @@
 void testListNode() {
     int nums[] = {2, 3, 5, 6, 7};
     int size = sizeof(nums) / sizeof(int);
-    ListNode *head = ArrayToLinkedList(nums, size);
-    PrintLinkedList(head);
+    ListNode *head = arrToLinkedList(nums, size);
+    printLinkedList(head);
 
-    ListNode *node = GetListNode(head, 5);
+    ListNode *node = getListNode(head, 5);
     printf("find node: %d\n", node->val);
 }
 
 void testTreeNode() {
     int nums[] = {1, 2, 3, NIL, 5, 6, NIL};
     int size = sizeof(nums) / sizeof(int);
-    TreeNode *root = ArrayToTree(nums, size);
+    TreeNode *root = arrToTree(nums, size);
 
     // print tree
-    PrintTree(root);
+    printTree(root);
 
     // tree to arr
-    int *arr = TreeToArray(root);
-    PrintArray(arr, size);
+    int *arr = treeToArr(root);
+    printArray(arr, size);
 }
 
 int main(int argc, char *argv[]) {

codes/c/include/list_node.h

@@ -22,7 +22,7 @@ struct ListNode {
 // typedef 为 C 语言的关键字，作用是为一种数据类型定义一个新名字
 typedef struct ListNode ListNode;
 
-ListNode *NewListNode(int val) {
+ListNode *newListNode(int val) {
     ListNode *node, *next;
     node = (ListNode *) malloc(sizeof(ListNode));
     node->val = val;
@@ -37,15 +37,15 @@ ListNode *NewListNode(int val) {
  * @return ListNode*
  */
 
-ListNode *ArrayToLinkedList(const int *arr, size_t size) {
+ListNode *arrToLinkedList(const int *arr, size_t size) {
     if (size <= 0) {
         return NULL;
     }
 
-    ListNode *dummy = NewListNode(0);
+    ListNode *dummy = newListNode(0);
     ListNode *node = dummy;
     for (int i = 0; i < size; i++) {
-        node->next = NewListNode(arr[i]);
+        node->next = newListNode(arr[i]);
         node = node->next;
     }
     return dummy->next;
@@ -58,7 +58,7 @@ ListNode *ArrayToLinkedList(const int *arr, size_t size) {
  * @param val
  * @return ListNode*
  */
-ListNode *GetListNode(ListNode *head, int val) {
+ListNode *getListNode(ListNode *head, int val) {
     while (head != NULL && head->val != val) {
         head = head->next;
     }

codes/c/include/print_util.h

@@ -25,7 +25,7 @@ extern "C" {
  * @param arr
  * @param size
  */
-static void PrintArray(int *arr, int size) {
+static void printArray(int *arr, int size) {
     printf("[");
     for (int i = 0; i < size - 1; i++) {
         if (arr[i] != NIL) {
@@ -46,7 +46,7 @@ static void PrintArray(int *arr, int size) {
  *
  * @param head
  */
-static void PrintLinkedList(ListNode *node) {
+static void printLinkedList(ListNode *node) {
     if (node == NULL) {
         return;
     }
@@ -123,7 +123,7 @@ static void printTreeHelper(TreeNode *node, Trunk *prev, bool isLeft) {
  *
  * @param head
  */
-static void PrintTree(TreeNode *root) {
+static void printTree(TreeNode *root) {
     printTreeHelper(root, NULL, false);
 }
 

codes/c/include/tree_node.h

@@ -25,7 +25,7 @@ struct TreeNode {
 typedef struct TreeNode TreeNode;
 
 
-TreeNode *NewTreeNode(int val) {
+TreeNode *newTreeNode(int val) {
     TreeNode *node;
 
     node = (TreeNode *) malloc(sizeof(TreeNode));
@@ -43,7 +43,7 @@ TreeNode *NewTreeNode(int val) {
  * @param size
  * @return TreeNode *
  */
-TreeNode *ArrayToTree(const int *arr, size_t size) {
+TreeNode *arrToTree(const int *arr, size_t size) {
     if (size <= 0) {
         return NULL;
     }
@@ -53,7 +53,7 @@ TreeNode *ArrayToTree(const int *arr, size_t size) {
     TreeNode **queue;
 
     /* 根结点 */
-    root = NewTreeNode(arr[0]);
+    root = newTreeNode(arr[0]);
     /* 辅助队列 */
     queue = (TreeNode **) malloc(sizeof(TreeNode) * MAX_NODE_SIZE);
     // 队列指针
@@ -68,14 +68,14 @@ TreeNode *ArrayToTree(const int *arr, size_t size) {
         index++;
         if (index < size) {
             if (arr[index] != NIL) {
-                node->left = NewTreeNode(arr[index]);
+                node->left = newTreeNode(arr[index]);
                 queue[rear++] = node->left;
             }
         }
         index++;
         if (index < size) {
             if (arr[index] != NIL) {
-                node->right = NewTreeNode(arr[index]);
+                node->right = newTreeNode(arr[index]);
                 queue[rear++] = node->right;
             }
         }
@@ -91,7 +91,7 @@ TreeNode *ArrayToTree(const int *arr, size_t size) {
  * @param size
  * @return TreeNode *
  */
-int *TreeToArray(TreeNode *root) {
+int *treeToArr(TreeNode *root) {
     if (root == NULL) {
         return NULL;
     }

docs/chapter_sorting/bubble_sort.md

@@ -170,7 +170,7 @@ comments: true
 
     ```c title="bubble_sort.c"
     /* 冒泡排序 */
-    void bubble_sort(int nums[], int size) {
+    void bubbleSort(int nums[], int size) {
         // 外循环：待排序元素数量为 n-1, n-2, ..., 1
         for (int i = 0; i < size - 1; i++)
         {
@@ -373,7 +373,7 @@ comments: true
 
     ```c title="bubble_sort.c"
     /* 冒泡排序 */
-    void bubble_sort(int nums[], int size) {
+    void bubbleSortWithFlag(int nums[], int size) {
         // 外循环：待排序元素数量为 n-1, n-2, ..., 1
         for (int i = 0; i < size - 1; i++)
         {