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  1. #include<stdio.h>
  2. #include<stdlib.h>
  3. typedef struct{
  4. int* data;
  5. int length;
  6. int size;
  7.  
  8. }arraylist;
  9. void initialize_arraylist(arraylist* list,int n){
  10. list->data=(int*)malloc(n*sizeof(int));
  11. list->length=0;
  12. list->size=n;
  13. }
  14. void resize_arraylist(arraylist* list){
  15. list->size*=2;
  16. list->data=(int*)realloc(list->data,list->size*sizeof(int));
  17. }
  18. void add_elements(arraylist* list,int value){
  19. if(list->length>=list->size){
  20.       resize_arraylist(list);
  21. }
  22. list->data[list->length++]=value;
  23. }
  24. void print_arraylist(arraylist *list){
  25. for(int i=0;i<list->length;i++){
  26.  
  27.       printf("%d ",list->data[i]);
  28. }
  29. }
  30. int main(){
  31.       arraylist list;
  32.       initialize_arraylist(&list,3);
  33.  
  34.       printf("Enter elements number: ");
  35.       int x;
  36.       scanf("%d",&x);
  37.       for(int i=0;i<x;i++){
  38.                   int y;
  39.             scanf("%d",&y);
  40.              add_elements(&list,y);
  41.       }
  42.       print_arraylist(&list);
  43. }
  44.  
Success #stdin #stdout 0s 5316KB
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stdin
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Standard input is empty
stdout
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Enter elements number:
https://ideone.com/JOocjN
basic_create_input_output_only
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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