顿搜
飞过闲红千叶，夕岸在哪
类目归类
Count Number of 1 in a Binary Integer
06/16
1. Description
Calculates the number of 1 in a binary integer
2. Example
11111110100 -> 8
001011010 -> 4
3. Code
int countBit(int x) {
int count = 0;
while(x != 0) {
count++;
x &= (x - 1);
}
return count;
}
