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 scanner = new Scanner(System.in);
scanner.useDelimiter("\n");
int num = 0;
if (scanner.hasNextInt()) {
num = scanner.nextInt();
}
int res = 0;
if (num==((1<<31)-1)) {
System.out.println(31);
return;
}
for (int i = 30; i >=0; i--) {
if (num >= (1<<i)) {
num-= (1<<i);
res++;
}
}
System.out.println(res);
}
}
要是大厂随便进哪来这么多人装逼