#include <bits/stdc++.h>
using namespace std;
#define LEN sizeof(struct student)
struct student
{
long num;
int score;
struct student* next;
};
struct student lista, listb;
int n, sum = 0;
int main()
{
struct student* creat(void);
struct student* insert(struct student*, struct student*);
void print(struct student*);
struct student* ahead, * bhead, * abh;
printf("input list a:\n");
ahead = creat();
sum = sum + n;
printf("input list b:\n");
bhead = creat();
sum = sum + n;
abh = insert(ahead, bhead);
print(abh);
return 0;
}
struct student* creat(void)
{
struct student* p1, * p2, * head;
n = 0;
p1 = p2 = (struct student*)malloc(LEN);
printf("input number & scores of student:\n");
printf("if number is 0,stop inputing.\n");
scanf("%ld,%d", &p1->num, &p1->score);
head = NULL;
while (p1->num != 0)
{
n = n + 1;
if (n == 1)
head = p1;
else
p2->next = p1;
p2 = p1;
p1 = (struct student*)malloc(LEN);
scanf("%ld,%d", &p1->num, &p1->score);
}
p2->next = NULL;
return(head);
}
struct student* insert(struct student* ah, struct student* bh)
{
struct student* pa1, * pa2, * pb1, * pb2;
pa2 = pa1 = ah;
pb2 = pb1 = bh;
do
{
while ((pb1->num > pa1->num) && (pa1->next != nullptr))
{
pa2 = pa1;
pa1 = pa1->next;
}
if (pb1->num <= pa1->num)
{
if (ah == pa1)
ah = pb1;
else
pa2->next = pb1;
pb1 = pb1->next;
pb2->next = pa1;
pa2 = pb2;
pb2 = pb1;
}
} while ((pa1->next != NULL) || (pa1 == NULL && pb1 != NULL));
if ((pb1 != NULL) && (pb1->num > pa1->num) && (pa1->next == NULL))
pa1->next = pb1;
return(ah);
}
void print(struct student* head)
{
struct student* p;
printf("There are %d records: \n", sum);
p = head;
if (p != NULL)
do
{
printf("%ld %d\n", p->num, p->score);
p = p->next;
} while (p != NULL);
}
這是代碼。
為什么會出現這種錯誤 該如何解決
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標籤：C語言