LeetCode 2317: Maximum XOR After Operations Solution
Master LeetCode problem 2317 (Maximum XOR After Operations ), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
2317. Maximum XOR After Operations
Problem Explanation
Explanation
To solve this problem, we can iterate through each bit position from the most significant bit to the least significant bit. At each bit position, we determine if flipping that bit would maximize the XOR result. We do this by trying to set the bit to 1 for all elements in the array and checking if this leads to a bigger XOR result. If setting the bit to 1 does not increase the XOR result, we keep the bit as 0. By doing this for all bit positions, we can find the maximum XOR result possible.
Time Complexity: O(N) where N is the number of elements in the array. Space Complexity: O(1)
Solution Code
class Solution {
public int findMaximumXOR(int[] nums) {
int maxXOR = 0;
int mask = 0;
for (int i = 30; i >= 0; i--) {
mask |= (1 << i);
Set<Integer> set = new HashSet<>();
for (int num : nums) {
set.add(num & mask);
}
int candidateXOR = maxXOR | (1 << i);
for (int prefix : set) {
if (set.contains(candidateXOR ^ prefix)) {
maxXOR = candidateXOR;
break;
}
}
}
return maxXOR;
}
}Try It Yourself
Loading code editor...
Related LeetCode Problems
Frequently Asked Questions
How to solve LeetCode 2317 (Maximum XOR After Operations )?
This page provides optimized solutions for LeetCode problem 2317 (Maximum XOR After Operations ) in Java, C++, and Python, along with a detailed explanation and an interactive code editor to test your code.
What is the time complexity of LeetCode 2317 (Maximum XOR After Operations )?
The time complexity for LeetCode 2317 (Maximum XOR After Operations ) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.
Can I run code for LeetCode 2317 on DevExCode?
Yes, DevExCode provides an interactive code editor where you can write, test, and run your code for LeetCode 2317 in Java, C++, or Python.