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Efficient way to find Xor of pairs with given target X in a range 0 to K
I came across a problem: given an array (can be huge 10^8) and an integer, K, find the count of pairs in the array whose Xor equal to each value in the range 0 to K.
eg:
Arr = 1 2 3
K = 2
since K=...
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is coding important? [closed]
Is coding important to be good at computer science? Should one implement the algorithm to know it well ?
I remember one cs professor's idiom that "I never code"
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