题解 | #求int型正整数在内存中存储时1的个数#
求int型正整数在内存中存储时1的个数
https://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int num = in.nextInt();
int one = 1;
int cnt = 0;
for (int i = 0; i < 32; i++) {
if ((num & one) == 1) {
cnt++;
}
num = num >> 1;
}
System.out.print(cnt);
}
}
