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🚀 LeetCode Journey

"Consistency beats intensity."

Welcome to my LeetCode repository! 👋

This repository contains my daily LeetCode solutions as part of my commitment to improving my problem-solving skills, strengthening Data Structures & Algorithms, and preparing for Software Engineering interviews.


🎯 Goals

  • ✅ Solve LeetCode problems every day
  • ✅ Improve logical thinking and coding skills
  • ✅ Master Data Structures & Algorithms
  • ✅ Prepare for Product-Based Company interviews
  • ✅ Maintain coding consistency

📌 Repository Structure

LeetCode/
│
├── Easy/
├── Medium/
├── Hard/
└── README.md

Each solution includes:

  • ✔️ Clean and readable code
  • ✔️ Optimized approach whenever possible
  • ✔️ Problem name
  • ✔️ Time & Space Complexity

💻 Languages Used

  • Python 🐍

(More languages may be added in the future.)


📈 Progress

Difficulty Status
🟢 Easy ✔️ Solving
🟡 Medium ✔️ Solving
🔴 Hard ✔️ Solving

🎓 Why This Repository?

I believe consistency is the key to becoming a better software engineer.

By solving problems daily, I'm improving:

  • Problem Solving
  • Algorithms
  • Data Structures
  • Coding Speed
  • Interview Readiness

🌟 Connect With Me


⭐ If you find this repository helpful, don't forget to star it!

Happy Coding! 🚀

LeetCode Topics

Math

0009-palindrome-number
0060-permutation-sequence
0070-climbing-stairs
0367-valid-perfect-square
0368-largest-divisible-subset
0372-super-pow
3312-sorted-gcd-pair-queries
3513-number-of-unique-xor-triplets-i

Binary Search

0004-median-of-two-sorted-arrays
0367-valid-perfect-square
0374-guess-number-higher-or-lower
0493-reverse-pairs
3312-sorted-gcd-pair-queries

Hash Table

0001-two-sum
0030-substring-with-concatenation-of-all-words
0383-ransom-note
0387-first-unique-character-in-a-string
0389-find-the-difference
0451-sort-characters-by-frequency
1331-rank-transform-of-an-array
3312-sorted-gcd-pair-queries

String

0010-regular-expression-matching
0020-valid-parentheses
0030-substring-with-concatenation-of-all-words
0383-ransom-note
0387-first-unique-character-in-a-string
0389-find-the-difference
0451-sort-characters-by-frequency
1081-smallest-subsequence-of-distinct-characters

Counting

0383-ransom-note
0387-first-unique-character-in-a-string
0451-sort-characters-by-frequency
3312-sorted-gcd-pair-queries

Interactive

0374-guess-number-higher-or-lower

Queue

0387-first-unique-character-in-a-string

Bit Manipulation

0389-find-the-difference
3513-number-of-unique-xor-triplets-i

Sorting

0368-largest-divisible-subset
0389-find-the-difference
0451-sort-characters-by-frequency
1331-rank-transform-of-an-array

Array

0001-two-sum
0004-median-of-two-sorted-arrays
0051-n-queens
0368-largest-divisible-subset
0493-reverse-pairs
1260-shift-2d-grid
1331-rank-transform-of-an-array
3312-sorted-gcd-pair-queries
3513-number-of-unique-xor-triplets-i

Dynamic Programming

0010-regular-expression-matching
0070-climbing-stairs
0368-largest-divisible-subset

Database

0511-game-play-analysis-i
0550-game-play-analysis-iv
0570-managers-with-at-least-5-direct-reports
0577-employee-bonus
0584-find-customer-referee
0585-investments-in-2016
0586-customer-placing-the-largest-number-of-orders
0595-big-countries
0596-classes-with-at-least-5-students
0601-human-traffic-of-stadium
0602-friend-requests-ii-who-has-the-most-friends

Combinatorics

3312-sorted-gcd-pair-queries

Number Theory

3312-sorted-gcd-pair-queries

Prefix Sum

3312-sorted-gcd-pair-queries

Stack

0020-valid-parentheses
1081-smallest-subsequence-of-distinct-characters

Greedy

1081-smallest-subsequence-of-distinct-characters

Monotonic Stack

1081-smallest-subsequence-of-distinct-characters

Heap (Priority Queue)

0023-merge-k-sorted-lists
0451-sort-characters-by-frequency

Bucket Sort

0451-sort-characters-by-frequency

Divide and Conquer

0004-median-of-two-sorted-arrays
0023-merge-k-sorted-lists
0372-super-pow
0493-reverse-pairs

Binary Indexed Tree

0493-reverse-pairs

Segment Tree

0493-reverse-pairs

Merge Sort

0023-merge-k-sorted-lists
0493-reverse-pairs

Ordered Set

0493-reverse-pairs

Matrix

1260-shift-2d-grid

Simulation

1260-shift-2d-grid

Recursion

0010-regular-expression-matching
0021-merge-two-sorted-lists
0060-permutation-sequence

Sliding Window

0030-substring-with-concatenation-of-all-words

Linked List

0021-merge-two-sorted-lists
0023-merge-k-sorted-lists
0083-remove-duplicates-from-sorted-list

Memoization

0070-climbing-stairs

Enumeration

1291-sequential-digits

Backtracking

0051-n-queens
0052-n-queens-ii

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