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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(void) {
  5. int *numbers = NULL, input, count = 0;
  6. while(scanf("%d", &input)!=EOF){
  7. numbers = realloc(numbers, ++count*sizeof(int));
  8. numbers[count-1] = input;
  9. }
  10.  
  11. int i = 0;
  12. for(i; i < count; ++i)
  13. printf("%d ", numbers[i]);
  14. return 0;
  15. }
  16.  
Success #stdin #stdout 0s 2144KB
stdin
1 2 3 4 5
stdout
1 2 3 4 5