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  1. #include <iostream>
  2. #include <cstdlib> 
  3. using namespace std;
  4. long long int M = 1000000007;
  5.  
  6. long long int find(long long int a, long long int b, long long int n)
  7. {
  8. 	if(n==a)
  9. 		return a;
  10. 	if(n==b)
  11. 		return b;
  12. 	long long int temp;
  13. 	temp=n%6;
  14. 	switch(temp)
  15. 	{
  16. 		case 1:
  17. 			return a;
  18. 		case 2:
  19. 			return b;
  20. 		case 3:
  21. 			return b-a;
  22. 		case 4:
  23. 			return -a;
  24. 		case 5:
  25. 			return -b;
  26. 		case 0:
  27. 			return a-b;
  28. 	}
  29. }
  30.  
  31. int main(void)
  32. {
  33. 	int T;
  34. 	cin>>T;
  35. 	while(T--)
  36. 	{
  37. 		long long int a, b, n, temp;
  38. 		cin>>a>>b>>n;
  39. 		temp=find(a, b, n)%M;
  40. 		if(temp<0)
  41. 			temp=temp+M;
  42. 		cout<<temp<<"\n";
  43.  
  44. 	}
  45.  
  46. 	return 0;
  47. }
  48.  
  49.  
  50.  
Success #stdin #stdout 0s 16064KB
comments (?)
stdin
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2
10 17 3
23 17 3
stdout
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7
1000000001
https://ideone.com/y84Y1d
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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