#1358Easy#49 in Qualcomm's list· asked at 5 companies
Number of 1 Bits
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What we know
Example 1
Input: n = 11 Output: 3
11 is 1011 in binary.
Example 2
Input: n = 128 Output: 1
Example 3
Input: n = 2147483645 Output: 30
Constraints
- •
1 <= n <= 2^31 - 1 - •
nis represented as an unsigned 32-bit integer in binary form.