一亩三分地论坛

 找回密码
 获取更多干货,去instant注册!

一亩三分地官方iOS手机应用下载
查看: 2048|回复: 2
收起左侧

liveramp OA+面经!

[复制链接] |试试Instant~ |关注本帖
calvinhmw 发表于 2015-11-16 01:53:43 | 显示全部楼层 |阅读模式

2015(10-12月) 码农类 本科 实习@LiveRamp - 网上海投 - 技术电面 在线笔试 |Failfresh grad应届毕业生

注册一亩三分地论坛,查看更多干货!

您需要 登录 才可以下载或查看,没有帐号?获取更多干货,去instant注册!

x

OA 第一题就是那个跳青蛙的问题。。要用dp 来做:
A small frog wants to get to the other side of a pond. The frog is initially located on
one bank of the pond (position 0) and wants to get to the other bank (position X).
The frog can jump any (integer) distance between 1 and D. If X > D then the frog
cannot jump right across the pond. Luckily, there are leaves falling from a tree onto
the surface of the pond, and the frog can jump onto and from the leaves. 鏉ユ簮涓浜.涓夊垎鍦拌鍧.
You are given a zero-indexed array A consisting of N integers. This array represents. 鐣欏鐢宠璁哄潧-涓浜╀笁鍒嗗湴
falling leaves. Initially there are no leaves. A[K] represents the position where a leaf
will fall in second K.
The goal is to find the earliest time when the frog can get to the other side of the
pond. The frog can jump from and to positions 0 and X (the banks of the pond) and
every position with a leaf.
For example, you are given integers X = 7, D = 3 and array A such that:
A[1] = 3. Waral 鍗氬鏈夋洿澶氭枃绔,

A[ 2] = 1
. more info on 1point3acres.com
A[3] - 4

A[ 4] = 2

A[ 5] = 5

Initially, the frog cannot jump across the pond in a single jump. However, in second
3, after a leaf falls at position 4, it becomes possible for the frog to cross. This is the
earliest moment when the frog can jump across the pond (by jumps of length 1, 3
and 3).. From 1point 3acres bbs
Write a function:

class Solution { public int solution(int[] A, int x, int D);. From 1point 3acres bbs
. 涓浜-涓夊垎-鍦帮紝鐙鍙戝竷
that, given a zero-indexed array A consisting of N integers, and integers X and D,
returns the earliest time when the frog can jump to the other side of the pond. If
the frog can leap across the pond in just one jump, the function should return 0. If
the frog can get to the other side of the pond just after the very first leaf falls, the
function should also return 0. If the frog is never able to jump to the other side of
the pond, the function should return -1.
For example, given integers X, D and array A as defined above, the function should
return 3 as explained above.
Assume that:
N is an integer within the range [0..100,000];


第二题: what excites you about working at liveRamp?
. 鐗涗汉浜戦泦,涓浜╀笁鍒嗗湴

第一轮电面
让我解释怎样找到shortest path from a source to a target in a graph. 不能coding。。要口头解释 。。所以跟他解释用bfs,把pseudo code 大概说了一遍
. visit 1point3acres.com for more.
一周后收到reject. 鏉ユ簮涓浜.涓夊垎鍦拌鍧.
. From 1point 3acres bbs
sunnywrq 发表于 2016-1-20 02:15:58 | 显示全部楼层
关注一亩三分地公众号:
Warald_一亩三分地
求问:frog的那个题目中,N就是A的长度吧?因为我看有的面经中要求的solution为int solution(int A[], int N, int X, int D)
回复 支持 反对

使用道具 举报

doufu 发表于 2016-11-8 08:03:01 | 显示全部楼层
关注一亩三分地微博:
Warald
楼主,你的面试官是谁呀?
回复 支持 反对

使用道具 举报

本版积分规则

请点这里访问我们的新网站:一亩三分地Instant.

Instant搜索更强大,不扣积分,内容组织的更好更整洁!目前仍在beta版本,努力完善中!反馈请点这里

关闭

一亩三分地推荐上一条 /5 下一条

手机版|小黑屋|一亩三分地论坛声明 ( 沪ICP备11015994号 )

custom counter

GMT+8, 2017-2-26 10:18

Powered by Discuz! X3

© 2001-2013 Comsenz Inc. Design By HUXTeam

快速回复 返回顶部 返回列表