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  1. #include<stdio.h>
  2. int main() {
  3. 	int input, correctResultCount = 0;
  4. 	float result = 0.0;
  5. 	while (true) {
  6. 		scanf("%d", &input);
  7.  
  8. 		if (input < 0) {
  9. 			result--;
  10. 			break;
  11. 		}
  12. 		if (input % 2 == 0) {
  13. 			result = result - 0.5;
  14. 		}
  15. 		if (input % 2 != 0) {
  16. 			result++;
  17. 			correctResultCount++;
  18. 		}
  19. 		if (correctResultCount == 3)
  20. 			break;
  21. 	}
  22. 	printf("%.1f", result);
  23. 	return 0;
  24. }
  25.  
Success #stdin #stdout 0s 3464KB
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2.0
https://ideone.com/jGzNU3
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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