hello-algo/codes/c/include/list_node.h
Yudong Jin 1c8b7ef559
refactor: Replace 结点 with 节点 (#452)
* Replace 结点 with 节点
Update the footnotes in the figures

* Update mindmap

* Reduce the size of the mindmap.png
2023-04-09 04:32:17 +08:00

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1.4 KiB
C++

/**
* 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;
}
/**
* @brief Generate a linked list with a vector
*
* @param list
* @return ListNode*
*/
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;
}
/**
* @brief Get a list node with specific value from a linked list
*
* @param head
* @param val
* @return ListNode*
*/
ListNode *getListNode(ListNode *head, int val) {
while (head != NULL && head->val != val) {
head = head->next;
}
return head;
}
#ifdef __cplusplus
}
#endif
#endif // LIST_NODE_H