Solution for Baekjoon 2026 (Picnic) using DFS on a friendship graph with adjacency matrix and adjacency list.

Solution for Baekjoon 1759 (Password Creation) using combinations with vowel and consonant constraints.

Solution for the Programmers filename sort problem using regex-based splitting and custom sort keys.

Solution for the Programmers word chain game problem using stack-based simulation and modular arithmetic.

Survey of NLP trends including reinforcement learning for summarization and QA, and multimodal NLP+CV approaches like Show and Tell and GLAC Net.

One-liner to find and kill all matching processes using ps, grep, awk, and xargs.