data structures and algorithms
Annyeonghaseyo!
I'm Jonathan, a software engineer with a specialization in cybersecurity. I created this portfolio to organize notes on leetcode, projects, and books I'm reading. Feel free to take a look around.
python3_dsa_solved: {
leetcode: {
easy: 0;
medium: 0;
hard: 0;
},
hackerrank: {
easy: 0;
medium: 0;
hard: 0;
},
sanity:
}
Currently Working On:
data structures and algorithms
LeetCode: Graphs I BFS Shortest Path Unweighted Graph
August 31, 2026
data structures and algorithms
LeetCode: Trees I BST
August 28, 2026
data structures and algorithms
LeetCode: Trees I DFS
August 28, 2026
system design
System Design Fundamentals
August 24, 2026
data structures and algorithms