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Microsoft Q# Coding Contest - Summer 2018:

- Microsoft Q#

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E1. Bernstein-Vazirani algorithm

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYou are given a quantum oracle - an operation on *N* + 1 qubits which implements a function . You are guaranteed that the function *f* implemented by the oracle is scalar product function (oracle from problem D1):

Here (an array of *N* integers, each of which can be 0 or 1).

Your task is to reconstruct the array . Your code is allowed to call the given oracle only once.

You have to implement an operation which takes the following inputs:

- an integer
*N*- the number of qubits in the oracle input (1 ≤*N*≤ 8), - an oracle
*Uf*, implemented as an operation with signature ((Qubit[], Qubit) => ()), i.e., an operation which takes as input an array of qubits and an output qubit and has no output.

The return of your operation is an array of integers of length *N*, each of them 0 or 1.

Your code should have the following signature:

namespace Solution {

open Microsoft.Quantum.Primitive;

open Microsoft.Quantum.Canon;

operation Solve (N : Int, Uf : ((Qubit[], Qubit) => ())) : Int[]

{

body

{

// your code here

}

}

}

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