输入一个字符串,将其中的字母字符输入一个链表,将其中的数字字符输入另一个链表,要求程序能够按读入时相反顺序输出两个字符串。
知道用伪代码怎么实现，但是无法编出可以运行的代码，求大佬帮助。

如果问题得到解决，请点我回答做上角的采纳，采纳后可以继续回答你的别的问题

// Q753292.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"


#include "stdio.h"
#include "stdlib.h"
#include "string.h"

struct node
{
    char v;
    node * next;
};

node * create()
{
    node * r = (node *)malloc(sizeof(node));
    r->v = '\0';
    r->next = NULL;
    return r;
}

void append(node * head, char ch)
{
    node * curr = head;
    while (curr->next != NULL) curr = curr->next;
    curr->next = (node *)malloc(sizeof(node));
    curr->next->v = ch;
    curr->next->next = NULL;
}

void printlist(node * head)
{
    node * curr = head;
    while (curr->next != NULL) 
    {
        curr = curr->next;
        printf("%c ", curr->v);
    }
    printf("\n");
}

int main()
{
    char input[100];
    scanf("%s", &input);
    node * wl = create();
    node * nl = create();
    for (int i = 0; i < strlen(input); i++)
    {
        if (input[i] >= 'a' && input[i] <= 'z')
            append(wl, input[i]);
        if (input[i] >= 'A' && input[i] <= 'Z')
            append(wl, input[i]);
        if (input[i] >= '0' && input[i] <= '9')
            append(nl, input[i]);
    }
    printf("letters:");
    printlist(wl);
    printf("numbers:");
    printlist(nl);
    return 0;
}