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bloomberg完整面经+吐槽题帖

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xixi_second 发表于 2014-10-17 11:14:16 | 显示全部楼层 |阅读模式

2014(10-12月) 码农类 硕士 全职@Bloomberg - 网上海投 - 技术电面 Onsite |Fail

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面地bloomberg,感觉非常非常滴不好,在glassdoor上写了面经,转到地里来。
主要是他们的travel agency 太坑, 飞来飞去在机场和飞机上就待了十几个小时,整个过程感觉很不好。 当然自己答题也答地不好啦,所以最后还是收到了据信。
For the first phone interview, I didn't get the phone call. The reciter then set another one for me. The phone interview took an hour. The compiling function of the online coding tool went down so I have to talk through my code to the interviewer. However I have a feeling that when I was talking about the answers the interviewer was doing his own staff. I need to wait for a long time for his response and I even asked whether he is still there or not. Almost at the end of that interview, the interviewer seemed has done his own works and asked me whether I have any questions for him, then he answered my questions patiently.

I got the onsite interview invitation the next Monday.

They have a travel agent helped me to book the ticket and flight and hotel. However, they explained that since the non-stop air ticket is too expensive, they have to book me a 1 stop one. It is only 1 hour and 40 minutes from my city to the NY, however, since I have to stop in another airport and the first flight delayed which made me fail to catch the connecting flight, it took me 9 hours to go the NY city the day before the interview and when I went back, this happened again.When I finally arrived at the LGA airport, the taxi they have arranged took me to a wrong hotel. Luckily the wrong one is closer to their HQ and I decided to stay there.
鏉ユ簮涓浜.涓夊垎鍦拌鍧.
On the interviewing day, I only survived 2 rounds.
The first round:
       1. Signal processing questions on my resume. What is LDPC, FFT? 这个完全么有想到会问,因为我是ee 背景,所以简历里写到了相关项目
       2. Return the index of the largest and second largest number of an given array
       3. Return the occurrence of each letter of a given string in alphabetical order. From 1point 3acres bbs
       4. If there is a people standing in the middle of a railway and there is a train from a unknown distance coming, there are two stations distanced 300m and 500m in two  directions of the railway, he has to decide which direction he should run.
The Second Round:. 涓浜-涓夊垎-鍦帮紝鐙鍙戝竷
       1. best time to buy and sell stock
       2. brain teaser: two robot, same program make them meet each other without knowing their location and no communication between them. Solve it both in 1d and 2d
       3. Two linked list joint together, find the node they first meet
           what if there is another list points to one of them, how to find the point which the original two lists merge together. 涓浜-涓夊垎-鍦帮紝鐙鍙戝竷
总的来说,第一轮面地很不好,题都答上来了但用地方法不好,有一些数据结构在答题地时候会大大简化答题时间,比如hashmap。 此行最大的收获就是,刷题的时候不要一味地追求速度,关键是每道题都能找到比较好地方法,或者掌握多种方法来解决。真正面试的时候题目一般不会很难,但从解题方法就能看出功力。
攒人品中,保佑我后面的面都顺利><


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from0tohero 发表于 2014-10-20 04:25:58 | 显示全部楼层
保佑楼主~能不能讲讲两道头脑风暴题目的答案呢?
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 楼主| xixi_second 发表于 2014-10-22 22:41:12 | 显示全部楼层
from0tohero 发表于 2014-10-20 04:25
保佑楼主~能不能讲讲两道头脑风暴题目的答案呢?

第一个是个小学奥数题,还给了火车速度是人速度两杯的条件,列两个等式,求出大于400往一个station 能活大于600往另外一个能活然后最后的决定是不管火车在哪儿,都往前一个跑~
第二个是两个机器人都先判断一下跟他们相隔1m那个mark是在哪个方向,然后往这个方向走两步退一步,一旦碰到第二次碰到mark就不退,这样就能追赶上在它前面那个robot。
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