编辑代码

#include <stdio.h>

typedef struct Linklist{
    int value;
    struct Linklist* next;
}Linknode;

int insert(Linklist *L, int x){
    Linknode *p;
    p = (Linknode *)malloc(sizeof(Linknode *));
    if(p == NULL){
        printf("Memory allocation failed!");
    }
    p.va
    return x;
}

int main () {
    Linknode *L;
    int n;
    scanf("%d",&n);
    printf("%d\n",n);
	return 0;
}