Count set bits in an integer in C Programming – Bit Algorithm – Simple Method Loop through all bits in an integer, check if bit is set and if then increment
how many bits in a byte
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Turn off the rightmost set bit – Bit Algorithm – Let the input number be n. n-1 would have all the bits flipped after the rightmost set bit .
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
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().