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Write a function that takes an unsigned integer and returns the number of ’1‘ bits it has (also known as the Hamming weight).
00000000000000000000000000001011, so the function should return 3.1 class Solution 2 { 3 public: 4 int hammingWeight(uint32_t n) 5 { 6 int count = 0; 7 while(n > 0) 8 { 9 if(n % 2 != 0) 10 count++; 11 n /= 2; 12 } 13 14 return count; 15 } 16 };
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原文地址：http://www.cnblogs.com/lxd2502/p/4325483.html
