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); // 注意 hasNext 和 hasNextLine 的区别 while (in.hasNextInt()) { // 注意 while 处理多个 case int a = in.nextInt(); String s = ""; while (a > 0) { if (a % 2 == 0) { s += "0"; } else { s += "1"; } a = a / 2; } String[] c = s.split("0"); int sum = 1; for (int i = 0; i < c.length; i++) { if (sum < c[i].length()) { sum = c[i].length(); } } System.out.println(sum); } } }