[Solution] Xor and Multiply CodeChef Solution

[Solution] Xor and Multiply CodeChef Solution | CodeChef Problem Solution 2022

JJ has three integers N$N$, A$A$ and B$B$ where 0≤A,B<2N$0\le A,B<2^N$. He wants to find a third integer X$X$ such that:

• 0≤X<2N$0\le X<2^N$
• the value of (A⊕X)×(B⊕X)$(A\oplus X)\times (B\oplus X)$ is maximum.

Here ⊕$\oplus$ represents the Bitwise XOR operator.

Can you help him find such an integer X$X$? If there are multiple integers which satisfy the given

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 conditions, print any.

Input Format

• The first line will contain T$T$ - number of test cases. Then the test cases follow.
• The first and only line of each test case contains three integers N$N$, A$A$ and B$B$ - the integers

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•  mentioned in the problem statement.

Output Format

For each test case, output an integer X$X$ which satisfies the given conditions.

If multiple answers exist, print any.

Constraints

• 1≤T≤5000$1\le T\le 5000$
• 1≤N≤30$1\le N\le 30$
• 0≤A,B<2N