how to count numbers of pairs in array of size n whose xor is equal than x for each value of 0<=x<=k ? 1<=n<=100000 1<=a[i]<=100000000 1<=k<=100000
how to count numbers of pairs in array of size n whose xor is equal than x for each value of 0<=x<=k ? 1<=n<=100000 1<=a[i]<=100000000 1<=k<=100000
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You can just google before posting here. Here
for each value of x between 0 to k this approach take O(n*n) time. please see constraint.
Is this from some ongoing contest? Provide the link