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imran.n
10 Aug 2026, 17:17
Intuition + complexity breakdown for Number of 1 Bits.
XOR cancels equal numbers, and x & (x - 1) clears the lowest set bit. Both give O(1) space solutions here.
Intuition + complexity breakdown for Number of 1 Bits.
XOR cancels equal numbers, and x & (x - 1) clears the lowest set bit. Both give O(1) space solutions here.
Same idea, but I used a deque. Works fine.
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