#include <stdio.h>   //표준입출력함수를 사용하기 전처리
#include <malloc.h>  //메모리동적할당을 위해 사용하기 위한 전처리
typedef int count; //count 구조체 선언
typedef struct Node{
    count data;
    struct Node *link;
}Node;        //Node와 link 사용을 위한 선언
//리스트노드와 링크를 따라 자료를 출력해보기 위한 display 함수 선언
void display(Node *head){
    Node *p=head;
    while(p!=NULL){
        printf("%d\n", p->data);
        p=p->link;
    }
} 
 
//메인함수
int main(){
 
    //p1, p2, p3 포인터변수 선언 및 동적메모리 할당
    Node *p1,*p2, *p3;
    p1=(Node *)malloc(sizeof(Node));
    p2=(Node *)malloc(sizeof(Node));
    p3=(Node *)malloc(sizeof(Node));
 
 
    //p1에 data 값 설정 및 다음 link 지정
    p1->data=10;
    p1->link=p2;
    //p2에 data 값 설정 및 다음 link 지정
    p2->data=20;
    p2->link=p3;
    //p3에 data 값 설정 및 마지막 노드임을 알 수 있도록 null 지정
    p3->data=30;
    p3->link=NULL;
 
    display(p1);
 
    return 0;
}

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