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
http://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
import java.util.*; public class Main{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); int num = sc.nextInt(); int n = 0; while(num != 0){ int j = num % 2; if(j == 1){ n++; } num /= 2; } System.out.println(n); } }