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Prime XOR
Prime XOR
+ 0 comments Here is the solution of Prime XOR Click Here
+ 0 comments Here is problem solution - https://programs.programmingoneonone.com/2021/07/hackerrank-prime-XOR-problem-solution.html
+ 1 comment what does mem[i][j] mean?
+ 0 comments The decision in the editorial isn't quite right, is it?
mem[flag^1][j^v[i-1]]*((a[v[i-1]]+1)/2))
so it can be simplified as a*(b/2)
In integer arithmetic, this gives us an incorrect result.
10*(3/2)=10
but it should be10*3/2=15
+ 1 comment many Python solutions which are not fast enough but in PyPy they are
because of this i wasted a whole day assuming my algorithm is not the right one
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