DSA Patterns

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Problem Library20

Stage

Topics

Freq.

Make Value Groups Contiguous

Medium

OAarray

Last seen Apr 13

array+2

1×

Make Power Non-decreasing

Medium

OAarray

Last seen Apr 20

array+1

11×

Make Array Zero by Subtracting Equal Amounts (LC 2375 :)

Easy

OAarray

Last seen Dec 19

array+1

1×

Make Array Distinct (Selling Shoes 🩰)

Medium

OAarray

Last seen Mar 26

array+2

2×

Make All Elements Distinct (Amazon London)

Easy

OAarray

Last seen Oct 26

array+1

1×

LRU Cache for Query Results

Medium

Phone Screendesign

Last seen Aug 17

Phone Screen

design+3

1×

Loyal Customers Across Two Days

Easy

Onsitehash_table

Last seen Jul 21

Onsite

hash_table+1

1×

Lowest Common Ancestor Implemented with Stack

Medium

Onsitetree

Last seen May 30

Onsite

tree+2

1×

Longest Zero Sum Subarray

Onsite

Last seen Apr 9

Onsite

—

1×

Longest Perfect Anagrams

Hard

OAstring

Last seen Oct 5

string+2

2×

Longest Palindromic Subsequence

Medium

Onsitestring

Last seen Jul 6

Onsite

string+1

1×

Longest Increasing Subsequence With Bounded Adjacent Difference

Hard

Onsitearray

Last seen Jul 25

Onsite

array+2

1×

Longest Arithmetic Subarray After One Change

Last seen Jan 6

—

1×

Lexicographically Smallest Palindrome Possible 🍊

Medium

OAstring

Last seen Mar 8

string+2

1×

Lexicographically Smallest After One Substring Rotation

Last seen Feb 5

—

1×

Lexicographically Maximum Final Sequence

Last seen Jan 24

—

1×

Lexicographically Maximal Resulting Array

Medium

OAarray

Last seen Apr 24

array+1

1×

Largest Number With Digit Sum

Last seen Aug 3

—

1×

Kth Smallest in Subarray 🍒

Medium

OAarray

Last seen Apr 11

array+2

1×

Koko Eating Bananas

Medium

Onsitearray

Last seen Jul 21

Onsite

array+2

1×