ServiceNow Interview Guide

Showing 3 of 88 questions

Ranking

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

Question

Frequency

Difficulty

Longest Substring Without Repeating Characters

Find the length of the longest substring within a given string that contains no repeating characters. The substring must be contiguous.

StringsTwo PointersSliding Windows

Very likely

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

Medium

#1. Longest Substring Without Repeating Characters

Medium

Find the length of the longest substring within a given string that contains no repeating characters. The substring must be contiguous.

StringsTwo PointersSliding Windows

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

Subarrays with K Different Integers

Given an array of integers, find the number of subarrays that contain exactly K distinct integers. A subarray is a contiguous part of the array.

ArraysTwo PointersSliding Windows

Very likely

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

Hard

#2. Subarrays with K Different Integers

Hard

Given an array of integers, find the number of subarrays that contain exactly K distinct integers. A subarray is a contiguous part of the array.

ArraysTwo PointersSliding Windows

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

Trapping Rain Water

Given an array representing the height of bars, calculate how much water can be trapped between them after rain. Think about finding the maximum height to the left and right of each bar.

ArraysTwo PointersDynamic ProgrammingStacks

Very likely

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

Hard

#3. Trapping Rain Water

Hard

Given an array representing the height of bars, calculate how much water can be trapped between them after rain. Think about finding the maximum height to the left and right of each bar.

ArraysTwo PointersDynamic ProgrammingStacks

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

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