One independent survey showed that 70% on people asked like coffee. Another independent survey showed that 80% of people like tea. What is the upper and lower bound of peoples who likes both coffee and tea
Softwareentwickler Backend Interview Questions
512,030 softwareentwickler backend interview questions shared by candidates
Given the daily values of a stock, find how you can lose the most with one buy-sell trading.
Quiz
Given an array of integers eg [1,2,-3,1] find whether there is a sub-sequence that sums to 0 and return it (eg 1,2,-3 or 2,-3,1) Checking every sub-sequence is O(n^2) which is too inefficient
Function to compute the number of ways to climb a flight of n steps. Taking 1, 2, or 3 steps at a time. Do it in Linear time and constant space. n = 3. 1 1 1 1 2 2 1 3 Ans = 4
Why do you want to join Wipro ? and please don't give me crap answers !
Just data structure and algorithms questions
Given a sorted matrix where the number below and right of you will always be bigger, write an algorithm to find if a particular number exist in the matrix. What is the running time of your algorithm.
You are trying to rob houses on a street. Each house has some +ve amount of cash. Your goal is to rob houses such that you maximize the total robbed amount. The constraint is once you rob a house you cannot rob a house adjascent to that house.
I was asked a pretty straight forward brain teaser during my last phone interview, which they said they don't normally do, but because I put that I was a logical problem solver on my resume they couldn't resist the opportunity to. It was the following "There are 20 different socks of two types in a drawer in a completely dark room. What is the minimum number of socks you should grab to ensure you have a matching pair?"
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