microsoft/qdk
Publicmirrored fromhttps://github.com/microsoft/qdkAvailable
katas/content/random_numbers/random_n_bits/solution.qs
27lines · modecode
| 1 | namespace Kata { |
| 2 | operation RandomNBits(N : Int) : Int { |
| 3 | mutable result = 0; |
| 4 | for i in 0..(N - 1) { |
| 5 | set result = result * 2 + RandomBit(); |
| 6 | } |
| 7 | return result; |
| 8 | } |
| 9 | |
| 10 | operation RandomBit() : Int { |
| 11 | // Allocate single qubit. |
| 12 | use q = Qubit(); |
| 13 | |
| 14 | // Set qubit in superposition state. |
| 15 | H(q); |
| 16 | |
| 17 | // Measuring the qubit and reset. |
| 18 | let result = M(q); |
| 19 | Reset(q); |
| 20 | |
| 21 | // Return integer value of result. |
| 22 | if result == One { |
| 23 | return 1; |
| 24 | } |
| 25 | return 0; |
| 26 | } |
| 27 | } |
| 28 | |