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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <set>
  4. #include <stdint.h>
  5.  
  6. int main() {
  7. 	const auto n_hashbits = 5;
  8. 	const auto i_max = 1ull << n_hashbits;
  9. 	uint64_t min_magic = -1;
  10.  
  11. 	for (uint64_t i_b2 = 1; i_b2 < i_max; ++i_b2) {
  12.  
  13. 	  for (uint64_t i_d2 = 1; i_d2 < i_max; ++i_d2) {
  14. 	  	if (i_d2 == i_b2) continue;
  15.  
  16. 	    for (uint64_t i_e3 = 1; i_e3 < i_max; ++i_e3) {
  17. 	      if (i_e3 == i_d2 || i_e3 == i_b2) continue;
  18.  
  19. 	      for (uint64_t i_f4 = 1; i_f4 < i_max; ++i_f4) {
  20. 	      	if (i_f4 == i_e3 || i_f4 == i_d2 || i_f4 == i_b2) continue;
  21.  
  22. 	        for (uint64_t i_g5 = 1; i_g5 < i_max; ++i_g5) {
  23. 	          if (i_g5 == i_f4 || i_g5 == i_e3 || i_g5 == i_d2 || i_g5 == i_b2) continue;
  24.  
  25. 	          uint64_t magic = i_b2 << 50;
  26. 	          magic |= i_d2 << 48;
  27. 	          magic |= i_e3 << 39;
  28. 	          magic |= i_f4 << 30;
  29. 	          magic |= i_g5 << 21;
  30. 			  min_magic = std::min(min_magic, magic);
  31. 	        }
  32. 	      }
  33. 	    }
  34. 	  }
  35. 	}
  36.  
  37. 	std::cout << "Min magic: " << std::hex << min_magic << std::endl;
  38. }
Success #stdin #stdout 0.05s 15232KB
comments (?)
stdin 
Standard input is empty
stdout 
Min magic: 40100c0a00000
https://ideone.com/mZmDVt
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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