Alibaba Interview Guide

Showing 3 of 5 questions

Ranking

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

Question

Frequency

Difficulty

Split Concatenated Strings

You are given a list of strings. Concatenate them to form a single string, then find the lexicographically largest string possible by splitting the concatenated string at any point and rejoining it.

StringsGreedy AlgorithmsArrays

Very likely

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

Medium

#1. Split Concatenated Strings

Medium

You are given a list of strings. Concatenate them to form a single string, then find the lexicographically largest string possible by splitting the concatenated string at any point and rejoining it.

StringsGreedy AlgorithmsArrays

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

Valid Parenthesis String

Determine if a string containing parentheses and asterisks is a valid parenthesis string. The asterisk can represent a left parenthesis, a right parenthesis, or an empty string.

StringsStacksDynamic ProgrammingGreedy Algorithms

Somewhat likely

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

Medium

#2. Valid Parenthesis String

Medium

Determine if a string containing parentheses and asterisks is a valid parenthesis string. The asterisk can represent a left parenthesis, a right parenthesis, or an empty string.

StringsStacksDynamic ProgrammingGreedy Algorithms

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

Split Array with Equal Sum

Given an array of integers, determine if it's possible to split it into two non-empty subarrays with equal sums. The split point itself is not included in either subarray's sum.

Arrays

Not likely

If you have a Alibaba interview, it's unlikely that you will get this question. Alibaba does ask it, but it's rare

Hard

#3. Split Array with Equal Sum

Hard

Given an array of integers, determine if it's possible to split it into two non-empty subarrays with equal sums. The split point itself is not included in either subarray's sum.

Arrays

This question is not likely to be asked in your Alibaba interview

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