Instacart Interview Guide

Showing 3 questions

Ranking

A question's ranking corresponds to how commonly it's asked by Instacart. The higher the ranking, the more likely you'll encounter it in a Instacart interview.

Question

Frequency

Difficulty

Average Waiting Time

You're given a list of customer arrival and service times. Calculate the average waiting time for all customers, assuming they are served in the order they arrive.

Arrays

Very likely

If you have a Instacart interview, it's very likely that you will get this question

Medium

#1. Average Waiting Time

Medium

You're given a list of customer arrival and service times. Calculate the average waiting time for all customers, assuming they are served in the order they arrive.

Arrays

This question is very likely to be asked in your Instacart interview

Find First and Last Position of Element in Sorted Array

Given a sorted array, find the first and last position of a given target value. If the target is not found, return [-1, -1].

ArraysBinary Search

Very likely

If you have a Instacart interview, it's very likely that you will get this question

Medium

#2. Find First and Last Position of Element in Sorted Array

Medium

Given a sorted array, find the first and last position of a given target value. If the target is not found, return [-1, -1].

ArraysBinary Search

This question is very likely to be asked in your Instacart interview

Check if Every Row and Column Contains All Numbers

Determine if every row and every column in a given square matrix contains all the numbers from 1 to n, where n is the size of the matrix. Effectively, check if it's a valid Sudoku (without subgrids).

Arrays

Somewhat likely

If you have a Instacart interview, you might get this question

Easy

#3. Check if Every Row and Column Contains All Numbers

Easy

Determine if every row and every column in a given square matrix contains all the numbers from 1 to n, where n is the size of the matrix. Effectively, check if it's a valid Sudoku (without subgrids).

Arrays

This question is somewhat likely to be asked in your Instacart interview

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