PayU interview Experience (On-Campus)

Round 1: Online MCQTest

First-Round MCQ pseudo-code Coding test(medium level)

One day, after one week interview, took place. Shortlist for interview total 3 rounds, the single-day all rounds

Round 2: TR Round 1

Time: 1hour

Question asked

Given an array of stock prices for a day, u can buy and sell exactly once. Give the maximum profit for the day. Solution: iterate from left to right, keep track of global minimum, find the difference of arr(i) with global minimum and update the answer with max diff
Now among all the pairs possible, give the pair a minimum gap between buying and selling the stocks Solution: I only got a brute solution, O(n*n). For each ai check for the first aj on the right side where aj-ai is the maximum profit
Given a function that takes one parameter which is 50 percentage of one outcome and 50 percentage of another outcome, make them 75 percentage and 25 percentage. (Hint binary) .Solution: Take an extra bool variable, make it random for each call. And return binary OR of both bool variable and parameter taken.

Round 3: Managerial Round

Time: 20mins, (another guy got 1hr 20min)

Explain the difference between Software Engineering and the Rest of the Engineering branches (mech architecture, ECE)
Explain Difference between Scientists and Engineers
If given advice to CEO of Serum institute with a problem to One is manufacture vaccine another one is the distribution of vaccines across the globe
Given you can pick a scientist or engineering for each task, who would you pick and why Sol: scientist to make vaccine as he good in creating new things
Engineering to distribute as he efficient in doing old things in a better way

Round 4: HR

Time: 20min

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