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  1. #include<stdio.h>
  2.  
  3. int prime_number(int a){
  4. 	if(a == 2 || a == 3 || a == 5 || a == 7){
  5. 		return a;
  6. 	}
  7. 	else if(a != 1){
  8. 		if(a % 2 != 0 && a % 3 != 0 && a % 5 != 0 && a % 7 != 0){
  9. 			return a;
  10. 		}
  11.         else{
  12. 		    return 0;
  13. 	    }
  14. 	}
  15. 	else{
  16. 		return 0;
  17. 	}
  18. }
  19.  
  20. int main(void){
  21. 	int a, b, i, sum = 0, min;
  22. 	scanf("%d %d", &a, &b);
  23. 	for(i=a; i<=b; i++){
  24. 		sum += prime_number(i);
  25. 		if(sum > 0){
  26. 			min = sum;
  27. 			sum = 0;
  28. 			break;
  29. 		}
  30. 	}
  31. 	for(i=a; i<=b; i++){
  32. 		sum += prime_number(i);
  33. 	}
  34. 	if(sum == 0){
  35. 		printf("-1");
  36. 	}
  37. 	else{
  38. 		printf("%d\n", sum);
  39. 		printf("%d", min);
  40. 	}
  41. 	return 0;
  42. }
Success #stdin #stdout 0s 4396KB
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https://ideone.com/jugpky
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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