创建链表的问题，希冀平台

Question

问题遇到的现象和发生背景

创建链表问题：提交与自己学号相邻的两位同学的学号与一门考试成绩，编程建立由这三组数据结点组成的简单链表。
我在CSDN上允许各种案例，输出都是正确的，但是到了希冀平台上就是输出有问题

用代码块功能插入代码，请勿粘贴截图

#include <stdio.h>
#include <stdlib.h>
typedef struct Lnode* node;
struct Lnode
{
int num, score;
struct Lnode next;
};
node createlist()
{
struct Lnode lis=(struct Lnode)malloc(sizeof(struct Lnode));
lis->next = NULL;
lis->num = 0;
return lis;
}
void addelement(struct Lnode p)
{
struct Lnode newone= (struct Lnode)malloc(sizeof(struct Lnode));
newone->next = NULL;
struct Lnode* nextp=p;
for (int i = 0; i < p->num; i++)
nextp = nextp->next;
nextp->next = newone;
p->num++;

scanf("%d，%d", &newone->num, &newone->score);

}
void outelement(struct Lnode* p)
{
struct Lnode* nextp = p;

for (int t = 0; t < p->num; t++)
{
    printf("[num=%d,score=%d]", nextp->next->num, nextp->next->score);
    if (i != p->num - 1)
        printf("\n");
    nextp = nextp->next;
}

}
int main()
{
struct Lnode *p;
p = createlist();
for (int t= 0; t < 3; i++)
{
addelement(p);

}
    outelement(p);
return 0;

}

运行结果及报错内容

我的解答思路和尝试过的方法

有思考过空格问题，但是改了几次还是不行

Answer 1

重新修改，输入时注意学号和分数间的逗号 ‘,' 是英文半角的，供参考：

#include <stdio.h>
#include <stdlib.h>
typedef struct Lnode* node;
struct Lnode
{
    int num, score;
    struct Lnode* next;
};
node createlist()
{
    struct Lnode* lis = (struct Lnode*)malloc(sizeof(struct Lnode));
    lis->next = NULL;
    lis->num = 0;
    return lis;
}
void addelement(struct Lnode* p)
{
    struct Lnode* newone = (struct Lnode*)malloc(sizeof(struct Lnode));
    newone->next = NULL;
    scanf("%d,%d", &newone->num, &newone->score);
    struct Lnode* nextp = p;
    for (nextp = p;nextp->next != NULL; nextp = nextp->next);
    nextp->next = newone;
    p->num++;
}
void outelement(struct Lnode* p)
{
    struct Lnode* nextp = p;
    for (nextp = p;nextp->next != NULL;nextp = nextp->next)
    {
        printf("[num=%d,score=%d]", nextp->next->num, nextp->next->score);
        if (nextp->next->next != NULL)
            printf("\n");
    }
}
int main()
{
    struct Lnode *p;
    p = createlist();
    for (int t = 0; t < 3; t++)
    {
         addelement(p);
    }
    outelement(p);
    return 0;
}