Reverse words in a sentence (a char[]) without using additional space. eg. "Hello there children" -> "children there Hello"
Engineer Developer Interview Questions
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Three of my 150 friends have phone numbers ending in a permutation of the digits 0, 1, 4, and 9. Is this surprising?
Determine if a string is valid based on placement of parenthesis. i.e. "123(13(44))" is valid but ")234(12)(" is not.
Given an array of strings with commit ids, and a predicate isBuggy that returns if a single commit is buggy, write a program that finds the first buggy commit. - When a commit is buggy, we assume that all its children are buggy. - When a commit is not buggy, we assume that all its ancestors are not buggy. After solving it, I had to describe its time complexity and spatial complexity and how would I choose the test cases.
How do you swap 2 variable without using temporaries. (My version is given 2 register and 1 ALU, how do you swap the value of the 2 register without using external register or temporaries)
Use basic arithmetic operations (+-*/) to implement sqrt function.
Given a string write a function which prints all the subsets of the string. Now make the function to return only unique solutions. For example if they give you "abc" you print out a ab abc ac b bc c Now for the unique solution constraint, if they give you "aba" the output should be: a ab aba b
How do you see 5 years from now?
Given N credits cards, determine if more than half of them belong to the same person/owner. All you have is an array of the credit card numbers, and an api call like isSamePerson(num1, num2).
Question is verbose, uses search engine, string matching etc., but at the end boils down to this: There is two dimensional array where each sub array (row) is sorted, i.e. [[1 1000 2000] [20 10001 5000] [55 10002 222222]] Find a minimum range contain a number from each row. For above array it should be (1000-1002) range.
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