LeetCode 191. Number of 1 Bits
2015-05-04 13:41
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代码:
class Solution
{
public:
int hammingWeight(uint32_t n)
{
int one_cnt = 0;
for (uint32_t mask = 1; mask != 0; mask <<= 1)
{
one_cnt += (n & mask) != 0? 1: 0;
}
return one_cnt;
}
};
class Solution
{
public:
int hammingWeight(uint32_t n)
{
int one_cnt = 0;
for (uint32_t mask = 1; mask != 0; mask <<= 1)
{
one_cnt += (n & mask) != 0? 1: 0;
}
return one_cnt;
}
};
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