Interview Questions

Nilesh S. - "A daily 10 minute cadence to make a note of the progress and the deliverables for the day, should help ascertain the delivery and to meet schedule the self performing teams need to be on toes to deliver. Time lines need to be revisited end of each day to evalute the impact."See full answer

Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know. Recall the formula for Fermi problems: Ask clarifying questions Catalog what you know Make equation(s) Think about edge cases to add to equation **Breakdown components of your equat"See full answer

Sanobar K. - "public static Dictionary FindPairsWitkkDifference(int k, int[] nums) { Dictionary pairsWithkDifference = new Dictionary(); int n = nums.Length; if( n== 0 || n == 1) Return 0; for(int i =0; i< n;i++) { for(int j = i+1; j < n; j++) { if(Math.Abs(nums[i] - nums[j]) == k) { pairsWithkDifference(nums[i], nums[j]); } } } Return pairsWithkDifference ; }"See full answer

Vineet M. - "Precision - Out of all the things we picked as correct, how many were actually correct? recall - Out of all the things that were truly correct, how many did we actually find?"See full answer

Prashanth A. - "We are asked to calculate Sum(over value) for time in (t - window_size, t) where key in (key criteria). To develop a function to set this up. Let w be the window size. I would have an observer of some kind note the key-value, and for the first w windows just add the value to a temporary variable in memory if the key meets the key criteria. Then it would delete the oldest value and add the new value if the new key meets the criteria. At each step after "w", we would take the sum / w and store"See full answer

Mo I. - "m*n"See full answer

Kwaku K. - "Use a min-heap or sort the array, either method works"See full answer

Yuexiang Y. - "clarify: so does the 5% drop a sudden drop or overtime in the one week does it broadly drop 5% or it dropped only in some regions or in some segments like new acqusition / frequent active customers? or does the 5% drop also happened last year same period? DAU = acqusition x activation x retention segment: I will first quickly do some EDA to find out problem, like calculate the DAU drop in new customer, tenured customer, between regions to find out is there any difference. then I will also look"See full answer

Exponent - "This is another Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know. Recall the formula for Fermi problems: Ask clarifying questions Catalog what you know Make equation(s) Think about edge cases to add to equation **Breakdown components of your"See full answer