Suraj's Notes

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Suraj's Notes

Search Ctrl + K

Biology

Brain

Cognitive Dissonance Theory

Dopamine and Decisions

Prospective Memory

Psychoactive Drugs

Evolution

1

Olfactory System

Prospective Memory

Brain

Psychoactive Drugs

Data Structures

Binary Search Tree

Doubly Linked List

Singly Linked List

DBMS

ChromaDB

Deploy

Django Application

DSA

Code

2. Add Two Numbers

3. Longest Substring Without Repeating Characters

5. Longest Palindromic Substring

5. Valid Number

6. Zigzag Conversion

7. Reverse Integer

8. String to Integer (atoi)

9. Palindrome Number

11. Container With Most Water

13. Roman to Integer

14. Longest Common Prefix

17. Letter Combinations of a Phone Number

19. Remove Nth Node From End of List

20. Valid Paranthesis

21. Merge Two Sorted Lists

26. Remove Duplicates from sorted array

26. Valid Sudoku

27. Remove Element

28. Find the Index of the First Occurrence in a String

29. Divide Two Integers

35. Search Insert Position

38. Count and Say

43. Multiply Strings

48. Rotate Image

49. Group Anagrams

53. Maximum subarray sum

53. Maximum Subarray

58. Length of Last Word

70. Climbing Stairs

71. Simplify Path

75. Sort Colors

83. Remove Duplicates from Sorted List

88. Merge Sorted Array

88. Merge two sorted arrays

104. Maximum Depth of Binary Tree

111. Minimum Depth of Binary Tree

118. Pascal's Triangle

121. Best Time to Buy and Sell Stock

125. Valid Palindrome

136. Single Number

151. Reverse Words in a String

165. Compare Version Numbers

168. Excel Sheet Column Title

169. Majority Element

171. Excel Sheet Column Number

176. Second Highest Salary

189. Rotate Array

202. Happy Number

204. Count Primes

205. Isomorphic Strings

217. Contains Duplicate

228. Summary Ranges

231. Power of Two

238. Product of Array Except Self

242. Valid Anagram

268. Missing Number

283. Move Zeroes

290. Word Pattern

299. Bulls and Cows

300. Longest Increasing Subsequence

334. Increasing Triplet Subsequence

338. Counting Bits

344. Reverse a String

344. Reverse String

347. Top K Frequent Elements

349. Intersection of Two Arrays

350. Intersection of Two Arrays II

383. Ransom Note

386. Lexicographical Numbers

387. First Unique Character in a String

389. Find the Difference

392. Is Subsequence

394. Decode String

409. Longest Palindrome

434. Number of Segments in a String

440. K-th Smallest in Lexicographical Order

443. String Compression

459. Repeated Substring Pattern

485. Max Consecutive Ones

496. Next Greater Element I

560. Subarray Sum Equals K

594. Longest Harmonious Subsequence

605. Can Place Flowers

643. Maximum Average Subarray I

724. Find Pivot Index

735. Asteroid Collision

739. Daily Temperatures

933. Number of Recent Calls

1061. Lexicographically Smallest Equivalent String

1071. Greatest Common Divisor of Strings

1128. Number of Equivalent Domino Pairs

1207. Unique Number of Occurrences

1295. Find Numbers with Even Number of Digits

1353. Maximum Number of Events That Can Be Attended

1394. Find Lucky Integer in an Array

1399. Count Largest Group

1431. Kids With the Greatest Number of Candies

1432. Max Difference You Can Get From Changing an Integer

1456. Maximum Number of Vowels in a Substring of Given Length

1484. Group Sold Products By The Date

1498. Number of Subsequences

1534. Count Good Triplets

1550. Three Consecutive Odds

1679. Max Number of K-Sum Pairs

1732. Find the Highest Altitude

1768. Merge Strings

1837. Sum of Digits in Base K

1865. Finding Pairs With a Certain Sum

1920. Build Array from Permutation

2016. Maximum Difference Between Increasing Elements

2040. Kth Smallest Product of Two Sorted Arrays

2095. Delete the Middle Node of a Linked List

2099. Find Subsequence of Length K With the Largest Sum

2138. Divide a String Into Groups of Size k

2176. Count Equal and Divisible Pairs in an Array

2200. Find All K-Distant Indices in an Array

2206. Divide Array Into Equal Pairs

2215. Find the Difference of Two Arrays

2294. Partition Array Such That Maximum Difference Is K

2379. Minimum Recolors to Get K Consecutive Black Blocks

2390. Removing stars from a string

2404. Most Frequent Even Element

2434. Using a robot to print the lexicographically smallest string

2523. Closest Prime Numbers in Range

2529. Maximum Count of Positive Integer and Negative Integer

2566. Maximum Difference by Remapping a Digit

2570. Merge Two 2D Arrays by Summing Values

2579. Count Total Number of Colored Cells

2600. K Items With the Maximum Sum

2656. Maximum Sum With Exactly K Elements

2703. Return Length of Arguments Passed

2769. Find the Maximum Achievable Number

2873. Maximum Value of an Ordered Triplet I

2879. Display the First Three Rows

2884. Modify Columns

2894. Divisible and Non-divisible Sums Difference

2900. Longest Unequal Adjacent Groups Subsequence I

2901. Longest Unequal Adjacent Groups Subsequence II

2942. Find Words Containing Character

2965. Find Missing and Repeated Values

2966. Divide Array Into Arrays With Max Difference

3024. Type of Triangle

3085. Minimum Deletions to Make String K-Special

3110. Score of a String

3170. Lexicographically Minimum String After Removing Stars

3304. Find the K-th Character in String Game I

3307. Find the K-th Character in String Game II

3330. Find the Original Typed String I

3333. Find the Original Typed String II

3392. Count Subarrays of Length Three With a Condition

3403. Find the Lexicographically Largest String From the Box I

3405. Count the Number of Arrays with K Matching Adjacent Elements

3423. Maximum Difference Between Adjacent Elements in a Circular Array

3442. Maximum Difference Between Even and Odd Frequency I

3443. Maximum Manhattan Distance After K Changes

3445. Maximum Difference Between Even and Odd Frequency II

3597. Partition String

Check if a number is prime or not

Factorial of a number

Fibonacci Sequence

Sieve of Eratosthenes

EH

Frontend

Hardware

Langchain

Document loaders

Linux

Hardware commands

Network

Coaxial Cables (Bayonet Neil Concelman (BNC))

Fiber Optic cable

Network testing tools

OS

Physics

Current, Ampere, Columb

Python

Ord() and chr()

Python Functions

Python Fundamentals

Scraping

Ch1- Web Scraping

UGC NET

UGC NET Topic wise

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Olfactory System

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