Write a function to check if a given tree is a valid binary search tree or not.
Desenvolvedor Interview Questions
102,674 desenvolvedor interview questions shared by candidates
Given 99 numbers from 1 to 100 no-duplicate, find the number that is not there between 1 to 100; given 98 numbers from 1 to 100 no-duplicate, find the two numbers missing between 1 to 100.
There are 10 boxes of apples. Each apple in the boxes weights 1 pound, except that one of the boxes contains bad apples, which weights 0.9 pound each. You are given a digital weight (not a scale), and you can take apples out of the boxes. what is the minimum time of weighs to find out which box has bad apples? I gave one solution of 3 times using divide and conquer, but the interviewer said that 1 step is possible. So I couldn`t come up with the solution.
what are circuit breaker in micro-services?
its very nice to have an interview in valeo, its a big company, but glassdoor make make a review in force to see other salaries kinda like that
Solve a graph problem which was unrelated to the role being interviewed for?
Not very difficult - logic questions involving a different language.
Design and implement a set of classes that implements logical AND and OR gates and allows them to be combined together to create larger logic blocks.
First the first one they asked me to debug some code and then I got some logic questions.
Using the UNIX file /usr/share/dict/words that contains one word per line, how would you get a random word out of the dictionary with the same probability for all the words in the file?
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