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  1. #include <cstring>
  2. #include <cmath>
  3. #include <algorithm>
  4. #include <cstdlib>
  5. #include <cstdio>
  6. #include <iostream>
  7. #include <fstream>
  8. #include <queue>
  9.  
  10. #define rep(i, l, r) for(int i = l; i <= r; i++)
  11. #define down(i, l, r) for(int i = l; i >= r; i--)
  12. #define MS 34567
  13. #define MAX 1037471823
  14.  
  15. using namespace std;
  16.  
  17. double x, y;
  18. int n;
  19.  
  20. double Search(double x, double y, int n)
  21. {
  22. 	double a, b; 
  23.  
  24. 	if (x > y) a = x, x = y, y = a;
  25. 	if (n == 1) return y / x;
  26. 	b = MAX; 
  27. 	a = y / n;
  28. 	rep(i, 1, n-1) 
  29. 		b = min(b, max(Search(x, a*i, i), Search(x, y-a*i, n-i)));
  30. 	a = x / n;
  31. 	rep(i, 1, n-1) 
  32. 		b = min(b, max(Search(y, a*i, i), Search(y, x-a*i, n-i)));
  33. 	return b;
  34. }
  35.  
  36. int main()
  37. {
  38. 	scanf("%lf%lf%d", &x, &y, &n);
  39. 	printf("%.6lf\n", Search(x, y, n));
  40. 	return 0;
  41. }
Success #stdin #stdout 0.05s 3300KB
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1.481481
https://ideone.com/TvYom1
BZOJ 1024
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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