Solution for the Programmers tuple problem using string parsing, regex, and length-based sorting.

C++ solution for the Programmers lotto best/worst rank problem with notes on find and vector methods.

C++ solution for the Programmers report results problem using unordered_map, set, and stringstream.

Solution for the Programmers printer queue problem using priority-based simulation.

Solution for the HackerRank Roads and Libraries problem using DFS to minimize the cost of building roads and libraries across connected city groups.

Dynamic programming solution for the HackerRank Sherlock and Cost problem, maximizing the sum of absolute differences in a sequence.

Solving HackerRank's Climbing the Leaderboard problem efficiently using sorted traversal instead of repeated search.

Solution for the Programmers string compression problem using n-gram style chunking.

Solution for the Programmers farthest node problem using BFS on an undirected graph.

Solution for Baekjoon 1074 (Z) using recursive quadrant division and cumulative counting.

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.

Solution for Baekjoon 14891 (Gear/Cogwheel) using recursive state checking and deque-based rotation.

Solution for the Programmers stepping stones problem using binary search on minimum distance.

Solution for the Programmers lifeboat problem using a greedy two-pointer approach.

Solution for the Programmers H-Index problem using sorting and linear scan.

Solution to the Programmers 'Disguise' hash problem using combinatorics to count clothing outfit combinations.

Solution for the Programmers phone book problem using sorting and prefix comparison.

Solution for the Programmers immigration problem using binary search on time cost.

Solution for Baekjoon 12100 (2048 Easy) using brute-force simulation with block merging and four-directional movement.

Solution for the Programmers word conversion problem using BFS with single-character diff detection.

Solution for Baekjoon 17297 (Messi Gimossi) using Fibonacci-based string search with a binary search-like approach.

Solution for the Programmers network problem using DFS to count connected components.

Solution for the Programmers target number problem with DFS, BFS, and itertools.product approaches.

Fundamentals of RNN including sequence data handling, latent autoregressive models, BPTT, and truncated backpropagation.

Mathematical derivation of gradient descent for linear regression, from L2 norm cost functions to SGD.

Fundamentals of Bayesian statistics covering Bayes' theorem, conditional probability, posterior updating, and causality interpretation.

CNN fundamentals: convolution operations, kernel mechanics, multi-dimensional convolutions, and backpropagation.