求助！毕业作业！哪位C++高人愿意帮忙，感激不尽！

import java.util.ArrayList; import java.util.List; public class ScalbAll { public static void main(String[] args) { int result = 49; List als = new ArrayList(); int n = 0; while (true) { double d = Math.scalb(2, n); if (d > result