reverse string
Software Development Engineer In De Test Interview Questions
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File contains url and time stamp from search engine(billions of lines of data). How can you retrieve the top 100 urls in a given time frame?
Stack to queue
The most difficult question was, they gave me a puzzle and asked me to write an algorithm to solve it
In place, move the duplicates in an array to the end. [Hint: first define duplicate. Ex. 02155530. Move 55 to end, OR 55 and 55, resulting in moving 555 to end.]
a huge matrix with 1 and 0, block the block of 1. elements could be "connected" by left, right, up or down side; but no diagonal. my answer, scan one by one, after getting the first 1, use stack walking to all neighour 1 and change them into 0, count++ then the interview asked how to make it parallel, ...
Expected question. I was prepared for the interview and I was able to answer the question.
He asked me how to reverse a string in C. I was a bit rusty, and the answer he was looking for was to iterate over the length of the string store one character in a temporary character, then store the end of the array in the new location. char<-str[i] str[i++]<-str[end] str[end--]<-char Something like that in pseudocode.
the most difficult question was when they asked me about the most difficult question
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