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  1. #include<stdio.h>
  2. #include<stdlib.h>
  3.  
  4. typedef struct node{
  5. 	int val;
  6. 	struct node *next;
  7. }Node;
  8.  
  9. Node *head = NULL;
  10.  
  11. Node *createN(int x){
  12. 	Node *newnode;
  13. 	newnode = (Node*)malloc(sizeof(Node));
  14. 	newnode->val = x;
  15. 	newnode->next = NULL;
  16. 	return newnode;
  17. }
  18.  
  19. void initL(int n){
  20. 	int x,i;
  21. 	Node *p;
  22. 	scanf("%d",&x);
  23. 	head = createN(x);
  24. 	p = head;
  25. 	for(i=1;i<n;i++){
  26. 		scanf("%d",&x);
  27. 		p->next = createN(x);
  28. 		p = p->next;
  29. 	}
  30. }
  31.  
  32. void freeL(){
  33. 	Node *p;
  34. 	while(head!=NULL){
  35. 		p = head->next;
  36. 		free(head);
  37. 		head = p;
  38. 	}
  39. }
  40.  
  41. void printN(Node *a){
  42. 	if(a == NULL)printf("NULL\n");
  43. 	else printf("%d",a->val);
  44. }
  45.  
  46. void printL(){
  47. 	Node *p = head;
  48. 	while(p !=NULL){
  49. 		printf("%d",p->val);
  50. 		p = p->next;
  51. 	}
  52. 	printf("\n");
  53. }
  54.  
  55. Node *getN(int n){
  56. 	int i;
  57. 	Node *p;
  58. 	p = head;
  59. 	for(i=1;i<n;i++)
  60. 	p=p->next;
  61. 	return p;
  62. }
  63.  
  64. int countL(){
  65. 	int ret=0;
  66. 	Node*p = head;
  67. 	while(p!=NULL){
  68. 		ret++;
  69. 		p=p->next;
  70. 	}
  71. 	return ret;
  72. }
  73.  
  74. int main(void){
  75. 	int i,n;
  76. 	scanf("%d",&n);
  77. 	initL(n);
  78. 	printL();
  79. 	printf("要素数:%d",countL());
  80. 	freeL();
  81. 	return 0;
  82. }
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Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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4
1 3 5 7
stdout
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1357
要素数:4
https://ideone.com/f1LLKq
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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