Class Solution
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public final class Solution1787 - Make the XOR of All Segments Equal to Zero.
Hard
You are given an array
numsand an integerk. The XOR of a segment[left, right]whereleft <= rightis theXORof all the elements with indices betweenleftandright, inclusive:nums[left] XOR nums[left+1] XOR ... XOR nums[right].Return the minimum number of elements to change in the array such that the
XORof all segments of sizekis equal to zero.Example 1:
Input: nums = 1,2,0,3,0, k = 1
Output: 3
Explanation: Modify the array from **1** , **2** ,0, **3** ,0 to from **0** , **0** ,0, **0** ,0.
Example 2:
Input: nums = 3,4,5,2,1,7,3,4,7, k = 3
Output: 3
Explanation: Modify the array from 3,4, **5** , **2** , **1** ,7,3,4,7 to 3,4, **7** , **3** , **4** ,7,3,4,7.
Example 3:
Input: nums = 1,2,4,1,2,5,1,2,6, k = 3
Output: 3
Explanation: Modify the array from 1,2, **4, **1,2, **5** ,1,2, **6** to 1,2, **3** ,1,2, **3** ,1,2, **3** .
Constraints:
1 <= k <= nums.length <= 2000<code>0 <= numsi< 2<sup>10</sup></code>
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
Modifier and Type Method Description final IntegerminChanges(IntArray nums, Integer k)-
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Method Detail
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minChanges
final Integer minChanges(IntArray nums, Integer k)
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