Cpp实现：

#include <cstdio>

using namespace std;

struct Node
{
    int value;
    Node* next;

    Node() {}

    Node(int v) : value(v), next(nullptr) {}
};

Node* head = nullptr;

void add(Node* node)
{
    node->next = head;
    head = node;
}

bool remove(int x)
{
    if (!head) return false;
    Node* p = head, * prev = p;
    if (!x)
    {
        head = p->next;
        delete p;
        p = nullptr;
        return true;
    }
    for (int i = 0; i < x && p; ++i)
    {
        prev = p;
        p = p->next;
    }
    if (p)
    {
        prev->next = p->next;
        delete p;
        p = nullptr;
        return true;
    }
    return false;
}

void print()
{
    Node* p = head;
    while (p)
    {
        printf("%d ", p->value);
        p = p->next;
    }
}

int main()
{
    Node* node = new Node(1);
    add(node);
    add(new Node(2));
    add(new Node(3));
    print();
    printf("\n");
    remove(0);
    print();
    return 0;
}

Java实现：

import java.io.*;

public class Main
{
    static class Node
    {
        int value;
        Node next;

        public Node() {}

        public Node(int value)
        {
            this.value = value;
        }
    }

    static Node head = null;
    static PrintWriter pw = new PrintWriter(new OutputStreamWriter(System.out));

    static void add(Node node)
    {
        node.next = head;
        head = node;
    }

    static boolean remove(int x)
    {
        if (head == null) return false;
        Node p = head, prev = p;
        if (x == 0)
        {
            head = p.next;
            p = null;
            return true;
        }
        for (int i = 0; i < x && p != null; ++i)
        {
            prev = p;
            p = p.next;
        }
        if (p != null)
        {
            prev.next = p.next;
            p = null;
            return true;
        }
        return false;
    }

    static void print()
    {
        Node p = head;
        while (p != null)
        {
            pw.printf("%d ", p.value);
            p = p.next;
        }
    }

    public static void main(String[] args) throws IOException
    {
        Node node = new Node(1);
        add(node);
        add(new Node(2));
        add(new Node(3));
        print();
        pw.printf("\n");
        remove(0);
        print();
        pw.close();
    }
}