Problem · Array

Longest Increasing Subsequence With Bounded Adjacent Difference

HardAmazonFULLTIMEONSITE INTERVIEW
See Amazon hiring insights

Problem statement

Given a non-empty integer array arr and a non-negative integer k, return the maximum length of a subsequence that satisfies all of the following:

The problem statement continues
Pro

Examples

Example 1

arr = [7,1,4,5,8,8,10,6,7,7,7,8]k = 4return = 6

One longest valid subsequence is [1,4,5,6,7,8]. It preserves input order, every adjacent difference is at most 4, and its length is 6.

FastPrep Pro
Reported in 1 Amazon interview this week

Unlock this recently reported problem

FastPrep Pro gives you full access to interview problems reported within the last week.

  • Full problem statement and constraints
  • 2 more worked examples, explained
  • Guided hints and editorial
  • Run your code on real test cases
$9/month

Pro subscription, billed yearly — or $19 month-to-month. Cancel anytime.

Free plan — 2 of 2 free unlocks used this week
CodePython 3
Run and Submit unlock with Pro
FastPrep Pro
Reported in 1 Amazon interview this week

Unlock this recently reported problem

FastPrep Pro gives you full access to interview problems reported within the last week.

  • Full problem statement and constraints
  • 2 more worked examples, explained
  • Guided hints and editorial
  • Run your code on real test cases
$9/month

Pro subscription, billed yearly — or $19 month-to-month. Cancel anytime.

Free plan — 2 of 2 free unlocks used this week