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Fragen im Vorstellungsgespräch: Softwareentwickler in Los Angeles, Vereinigte Staaten von Amerika


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you have a sequence where each number is a multiple of 2 or 5 (so: 2^i * 5^j). he gave the beginning of the sequence as 1,2,3,4,5,8,10,16... and asked me to find an algorithm to calculate the next number in the sequence.

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before i post the answer, i'm curious if anyone here could explain the approach that you should use. i didn't understand how the sequence worked.

How is 3 (the third number in the sequence) equal to 2^i * 5^j? Is 3 supposed to be there, or is it a typo?

Good catch! Sorry about the typo. I'll write a little more too: The start of the sequence is 1,2,4,5,8,10,16, 20, 25, 32... Any thoughts?

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Phone interview question: Given a string pattern of 0s, 1s, and ?s (wildcards), generate all 0-1 strings that match this pattern. e.g. 1?00?101 -> [10000101, 10001101, 11000101, 11001101]. You can generate the strings in any order that suits you.

13 Antworten

Write a function that finds the median of a set of three numbers, also find the Big O. Can it be done with only 2 comparisons, or do you need 3?

11 Antworten

First, a mathematic question, asking about a card game with how many possible way for the combination based on the rules it given. Second, let you to print out all the combination of 3 digit numbers with no duplicate, ex. 012, 013, ....123, 124, 125...

9 Antworten

Find max k elements among mostly sorted list.

8 Antworten

They asked me about the Java Object - Oriented, Inheritance and Out-put the single value of the 2 dimension array

7 Antworten

Write a power function power(a , b) returns a^b

8 Antworten

for encoding that {a,b,c,...,z}<->{1,2,3,...,26} if given a list of digit e.g. [1,2,3], this may represent {1,2,3}->{a,b,c} or {12,3}->{l,c} or {1,23}->{a,w}. so there are 3 possible interpretations for list [1,2,3] so, given a list of digit, calculate the number of possible interpretations for the list.

8 Antworten

select a random number between 1 & 7

7 Antworten

Write numbers 2^1000 and 5^1000 in a decimal notation, next to each other. How many digits does the newly obtained number have?

8 Antworten
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