2016京东编程题:抛小球 - 水滴失船 - 博客园



2016京东编程题:抛小球 - 水滴失船 - 博客园

小东和三个朋友一起在楼上抛小球,他们站在楼房的不同层,假设小东站的楼层距离地面N米,球从他手里自由落下,每次落地后反跳回上次下落高度的一半,并以此类推知道全部落到地面不跳,求4个小球一共经过了多少米?(数字都为整数)

给定四个整数A,B,C,D,请返回所求结果。

测试样例:
100,90,80,70
返回:1020
解题

感觉很简单,但是在double to int 上出现了问题,参看讨论有下面答案

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