Maximizing expressions
Practice
3.2 (33 votes)
Basic programming
Bit manipulation
Bit manipulation
Medium
Observation
Problem
19% Success 5905 Attempts 30 Points 1s Time Limit 256MB Memory 1024 KB Max Code

You are given three arrays \(A, B,\ and\ C\). All the three arrays consist of \(N\) integers.

You must perform the following operation on each index exactly one time:

\(Convert(i)\): Select a positive value \(D\) such that \(C_i\ \&\ D = D\), and update \(B_i = B_i \oplus D\).

Here, \(\oplus\) and \(\&\) denotes the bitwise XOR operation and bitwise AND operation.

You are required to maximize the following expression:

\(S = \sum_{i=1}^{n} A_i \oplus B_i\)    

Input format

  • First line: A single integer \(N\) denoting the number of elements of the array
  • Next line: \(N\) integers of array \(A\)
  • Next line: \(N\) integers of array \(B \)
  • Next line: \(N\) integers of array \(C\)

Output format
Print a single integer that denotes the maximum value of \(S\).

Constraints
\(1 \leq N \leq 10^5\)

\(1 \leq A_i, B_i, C_i < 2^{30}\)

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