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  1. #include <stdio.h>
  2. #include <ctype.h> /* for isdigit(c), etc. */
  3.  
  4. #define MAX 10
  5. #define SIZE 15
  6.  
  7. int getint(int *pn);
  8.  
  9. int main(void){
  10. 	int n, k;
  11. 	int array[SIZE];
  12.  
  13. 	for(n = 0; n < SIZE && getint(&array[n]) != EOF; n++)
  14. 		;
  15. 	for(k = 0; k < n; k++)
  16. 		printf("%d\n", array[k]);
  17. 	scanf("%d", &k);
  18. }
  19.  
  20. int getch(void);
  21. void ungetch(int c);
  22.  
  23.  
  24. int getint(int *pn){
  25. 	int c, sign;
  26.  
  27. 	while(isspace(c = getch()));
  28. 	if(!isdigit(c) && c != EOF && c != '+' && c != '-')
  29. 		return 0;
  30. 	sign = (c == '-') ? -1 : 1;
  31. 	if(c == '-' || c == '+'){
  32. 		c = getch();
  33. 		if(!isdigit(c)){
  34. 			ungetch((sign == 1) ? '+' : '-');
  35. 			return 0;
  36. 		}
  37. 	}
  38. 	for(*pn = 0; isdigit(c); c = getch())
  39. 		*pn = 10 * (*pn) + (c - '0');
  40. 	*pn *= sign;
  41. 	if(c != EOF){
  42. 		ungetch(c);
  43. 	}
  44. 	return c;
  45. }
  46.  
  47. int bufp = 0;
  48. int buf[MAX];
  49.  
  50. int getch(void)
  51. {
  52. 	return bufp > 0 ? buf[--bufp] : getchar();
  53. }
  54.  
  55. void ungetch(int c)
  56. {
  57. 	if (bufp < MAX)
  58. 		buf[bufp++] = c;
  59. }
Success #stdin #stdout 0s 2116KB
comments (?)
stdin 
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stdout 
1
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-1
0
-1218536476
https://ideone.com/fzseaq
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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