c试题-假设 x = 9999，求下面函数的返回值
int func(x)
{
int countx =0;
while (x)
{
countx++;
x = x & (x - 1);
}
return countx;
}int func(x)
{
int countx =0;
while (x)
{
countx++;
x = x & (x - 1);
}
return countx;
}
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