不同語言中節點結構的定義 I

鏈表節點

C++

struct ListNode {
    int val;
    ListNode *next;
    ListNode(int x) : val(x), next(NULL) {}
};

C#

public class ListNode {
    public int val;
    public ListNode next;
    public ListNode(int x) {
        val = x;
        next = null;
    }
}

Java

class ListNode {
    int val;
    ListNode next;
    ListNode(int x) {
        val = x;
        next = null;
    }
}

JavaScript

function ListNode(val) {
    this.val = val;
    this.next = null;
}
// Or in TypeScript ...
class ListNode {
    val: number
    next: ListNode | null
    constructor(val?: number, next?: ListNode | null) {
        this.val = (val===undefined ? 0 : val)
        this.next = (next===undefined ? null : next)
    }
}

Python

class ListNode:
    def __init__(self, x):
        self.val = x
        self.next = None