Next higher number with same number of set bits – Bit Algorithm – When we observe the binary sequence from 0 to 2n – 1 (n is # of bits),The idea is to find right most string of 1’s in x, and shift the pattern to right extreme
8 bit counter
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Count total set bits in all numbers from 1 to n – Bit Algorithm – In other words, if the control goes inside while loop of getNextLeftmostBit().