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array arr of a positive integers and an integer vali. We can perform the following tion of the given array arrat most once. The operation
array arr of a positive integers and an integer vali. We can perform the following tion of the given array arrat most once. The operation is as follows:
Choose two indices left and right such that left s right and right s based inderings.
For each value in the range of indices lefr and right, bitwise xor each of them with mba nonnegative integer which you can choose as per your subarray More formally numsin wit change to numsin xor
Find the maximum possible frequency of valafter performing the operation at most once.
Example
Suppose arr val
There are possible left right pairs such that left s right and right:s
: We can use in The resultant acray wil be Frequency of vat is
We can use The resulbat array will be Erequency of val is
We can use The resuttant arraycwi be : Frequency of val is
We can use The resuitant array wall the Frequency of s is write code in cpp
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