Rename the common modules in Java, C++ and C.

codes/c/utils/list_node.h

@@ -0,0 +1,58 @@
+/**
+ * File: list_node.h
+ * Created Time: 2023-01-09
+ * Author: Reanon (793584285@qq.com)
+ */
+#ifndef LIST_NODE_H
+#define LIST_NODE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* 链表节点结构体 */
+struct ListNode {
+    int val;               // 节点值
+    struct ListNode *next; // 指向下一节点的指针（引用）
+};
+
+// typedef 作用是为一种数据类型定义一个新名字
+typedef struct ListNode ListNode;
+
+/* 构造函数，初始化一个新节点 */
+ListNode *newListNode(int val) {
+    ListNode *node, *next;
+    node = (ListNode *)malloc(sizeof(ListNode));
+    node->val = val;
+    node->next = NULL;
+    return node;
+}
+
+/* Generate a linked list with a vector */
+ListNode *arrToLinkedList(const int *arr, size_t size) {
+    if (size <= 0) {
+        return NULL;
+    }
+
+    ListNode *dummy = newListNode(0);
+    ListNode *node = dummy;
+    for (int i = 0; i < size; i++) {
+        node->next = newListNode(arr[i]);
+        node = node->next;
+    }
+    return dummy->next;
+}
+
+/* Get a list node with specific value from a linked list */
+ListNode *getListNode(ListNode *head, int val) {
+    while (head != NULL && head->val != val) {
+        head = head->next;
+    }
+    return head;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // LIST_NODE_H