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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int compare(const void *a, const void *b) {
  5.     return (*(int *)a - *(int *)b);
  6. }
  7.  
  8. int main() {
  9.     int numbers[20], n = 0, num;
  10.     char input[10];
  11.  
  12.     while (1) {
  13.         scanf("%s", input);
  14.  
  15.         if (input[0] == 's' && input[1] == 't' && input[2] == 'o' && input[3] == 'p' && input[4] == '\0') {
  16.             break;
  17.         }
  18.  
  19.         num = atoi(input);  
  20.  
  21.         int is_duplicate = 0;
  22.         for (int i = 0; i < n; i++) {
  23.             if (numbers[i] == num) {
  24.                 is_duplicate = 1;
  25.                 break;
  26.             }
  27.         }
  28.         if (!is_duplicate) {
  29.             numbers[n++] = num;
  30.         }
  31.     }
  32.     qsort(numbers, n, sizeof(int), compare);
  33.  
  34.     for (int i = 0; i < n; i++) {
  35.         printf("%d ", numbers[i]);
  36.     }
  37.  
  38.     return 0;
  39. }
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin
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1 5 7 8 20 4 stop 100
stdout
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1 4 5 7 8 20
https://ideone.com/10gtEB
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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