https://github.com/dabananda/codevault
"Online Judge Solutions" is my collection of daily problem solutions from various online judges like Codeforces, LeetCode, and HackerRank. I share solutions for a range of topics, including data structures, algorithms and dynamic programming.
https://github.com/dabananda/codevault
c codeforces cpp csharp java leetcode neetcode neetcode150 python sql
Last synced: 2 days ago
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"Online Judge Solutions" is my collection of daily problem solutions from various online judges like Codeforces, LeetCode, and HackerRank. I share solutions for a range of topics, including data structures, algorithms and dynamic programming.
- Host: GitHub
- URL: https://github.com/dabananda/codevault
- Owner: dabananda
- Created: 2022-01-22T10:26:45.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2026-07-20T16:13:20.000Z (5 days ago)
- Last Synced: 2026-07-20T18:12:30.146Z (5 days ago)
- Topics: c, codeforces, cpp, csharp, java, leetcode, neetcode, neetcode150, python, sql
- Language: C++
- Homepage:
- Size: 122 MB
- Stars: 4
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Roadmap: roadmaps/dsa/graph.cpp
Awesome Lists containing this project
README
# CodeVault
### My Personal Programming & Competitive Programming Repository
Solve Once • Learn Forever • Implement Everywhere
[](https://github.com/dabananda/CodeVault)
[](https://github.com/dabananda/CodeVault)
[](https://github.com/dabananda/CodeVault)
[](https://github.com/dabananda/CodeVault)
[](LICENSE)
---
# About
Welcome to **CodeVault**, my personal archive of competitive programming solutions, interview preparation, algorithms, and data structure implementations.
My goal is to solve problems in multiple languages so I can understand each language's strengths and become a better software engineer.
Current languages:
* C
* C++
* C#
* Java
* Python
* JavaScript
* SQL
---
# Problem Solving Statistics
| Platform | Solved |
|----------|---------:|
| Codeforces | 296 |
| HackerRank | 190 |
| LeetCode | 168 |
| BeeCrowd | 70 |
| Coding Ninjas | 51 |
| UVA | 46 |
| CodeChef | 16 |
| GeeksforGeeks | 12 |
| VJudge | 12 |
| **Total** | **861** |
---
# Language Wise Statistics
| Language | Solved |
|----------|----------:|
| C++ | 670 |
| C | 113 |
| Java | 50 |
| Python | 44 |
| JavaScript | 19 |
| C# | 11 |
| SQL | 8 |
| **Total** | **915** |
Last updated: 2026-07-20 15:18 UTC
---
# Roadmap Progress
## NeetCode 150
```
Progress: 0 / 150
□□□□□□□□□□ 0%
```
## Blind 75
```
Progress: 0 / 75
□□□□□□□□□□ 0%
```
## Striver SDE Sheet
```
Progress: 0 / 191
□□□□□□□□□□ 0%
```
---
# Checklist
## NeetCode 150
* [ ] Arrays & Hashing
* [ ] Two Pointers
* [ ] Stack
* [ ] Binary Search
* [ ] Sliding Window
* [ ] Linked List
* [ ] Trees
* [ ] Heap
* [ ] Backtracking
* [ ] Graphs
* [ ] 1-D DP
* [ ] 2-D DP
* [ ] Greedy
* [ ] Intervals
* [ ] Advanced Graphs
* [ ] Bit Manipulation
* [ ] Math & Geometry
* [ ] Tries
---
## Blind 75
* [ ] Array
* [ ] Binary
* [ ] Dynamic Programming
* [ ] Graph
* [ ] Interval
* [ ] Linked List
* [ ] Matrix
* [ ] String
* [ ] Tree
* [ ] Heap
---
## Striver SDE Sheet
* [ ] Arrays
* [ ] Linked List
* [ ] Binary Tree
* [ ] BST
* [ ] Stack & Queue
* [ ] Recursion
* [ ] Backtracking
* [ ] Greedy
* [ ] Graph
* [ ] Dynamic Programming
* [ ] Trie
* [ ] Strings
---
# Topics Covered
* Arrays
* Strings
* Hashing
* Two Pointers
* Sliding Window
* Stack
* Queue
* Linked List
* Trees
* BST
* Heap
* Binary Search
* Graph
* BFS
* DFS
* Shortest Path
* Topological Sort
* Union Find
* Segment Tree
* Fenwick Tree
* Trie
* Greedy
* Dynamic Programming
* Recursion
* Backtracking
* Math
* Number Theory
* Bit Manipulation
* Geometry
---
# Author
Junior Software Engineer, LEADS Corporation Ltd
* 💼 ASP.NET Core, SQL Server
* ☕ Spring Boot, Oracle DB
* 💙 C#, Java, C++
* ⚡ Problem Solving, Software Architecture