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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int c;
  5. 	int count;
  6. 	int sp;
  7.  
  8. 	count = 0;
  9. 	sp = 0;
  10.  
  11. 	while (1) {
  12. 		c = getchar();
  13.  
  14. 		if (c == ' ') {
  15. 			count++;
  16. 		} else if (c == '\t') {
  17. 			count++;
  18. 		} else if (c == '\n') {
  19. 			count++;
  20. 		}
  21.  
  22. 		if (sp) {
  23. 			if (c == ' ') {
  24. 				/* none */
  25. 			} else {
  26. 				sp = 0;
  27. 				putchar(c);
  28. 			}
  29. 		} else {
  30. 			if (c == ' ') {
  31. 				sp = 1;
  32. 				putchar(c);
  33. 			} else {
  34. 				putchar(c);		
  35. 			}
  36. 		}
  37.  
  38. 		if (c == '\n') {
  39. 			break;
  40. 		}
  41. 	}
  42.  
  43. 	printf("count : %d\n", count);
  44.  
  45. 	return 0;
  46. }
Success #stdin #stdout 0.01s 1680KB
comments (?)
stdin
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a b  c   d
stdout
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a b c d	
count : 8
https://ideone.com/RP07L
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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