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Tagged with bit-manipulation counting
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Find xor sum of all pairs raised to power of 3
We are given array $A$ of $N$ integers each in the range $1 \leq A_i \leq 2^{30}$, that is we can write each integer with at most 30 bits. The target is to compute $\sum_{1\leq i \leq N,1\leq j<i} (...
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Find Number of subsequences such that bitwise OR is same as sum
Suppose there is an array having at most 10 elements between 1 to 10^18. Suppose the array has elements B1,B2,.Bn. We can choose sequence A1,A2,A3,..An such that 0<=Ai<=Bi. Count How many ...
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