--- title: "Gantogtokh Oyundalai (@oganaa2472) | Hashnode" description: "oganaa2472. Read the latest articles by Gantogtokh Oyundalai on Hashnode." url: "https://hashnode.com/@oganaa2472" --- @oganaa2472 # Gantogtokh Oyundalai @oganaa2472 · Milwaukee, WI, USA · Joined June 2025 oganaa2472 [Website](https://portfolio-kohl-phi-92.vercel.app/) ### [Simple Notes App with Jetpack Compose, Room & Hilt](https://oganaa.hashnode.dev/simple-notes-app-with-jetpack-compose-room-and-hilt?utm_source=hashnode&utm_medium=feed) Learn how to build a simple Android notes app using Jetpack Compose, Room, and Hilt 5 min read · [oganaa.hashnode.dev](https://oganaa.hashnode.dev/simple-notes-app-with-jetpack-compose-room-and-hilt?utm_source=hashnode&utm_medium=feed) [Jan 19](https://hashnode.com/posts/simple-notes-app-with-jetpack-compose-room-and-hilt/696e98f7ad9a0b9e2025d5db) ### [Building Popular Movies App with Jetpack Compose, Retrofit & Room](https://oganaa.hashnode.dev/building-popular-movies-app-with-jetpack-compose-retrofit-and-room?utm_source=hashnode&utm_medium=feed) A compact, offline-capable Android app that fetches the most popular movies from TMDB and displays them with Jetpack Compose. 4 min read · [oganaa.hashnode.dev](https://oganaa.hashnode.dev/building-popular-movies-app-with-jetpack-compose-retrofit-and-room?utm_source=hashnode&utm_medium=feed) [Jan 14](https://hashnode.com/posts/building-popular-movies-app-with-jetpack-compose-retrofit-and-room/696812b49532c587adba6f5f) ### [Linked List](https://oganaa.hashnode.dev/linked-list?utm_source=hashnode&utm_medium=feed) Reverse a Linked List Middle of the Linked List Delete Node in a Linked List Merge Two Sorted Linked List Remove duplicates from sorted list Intersection of two linked list Linked List Cycle Palindrome Linked List Swapping Nodes in a Linked L... 3 min read · [oganaa.hashnode.dev](https://oganaa.hashnode.dev/linked-list?utm_source=hashnode&utm_medium=feed) [Sep 4, 2025](https://hashnode.com/posts/linked-list/68b8f81bc03a27700e4ac88b) ### [12 Week Program - Leetcode](https://oganaa.hashnode.dev/12-week-program-leetcode?utm_source=hashnode&utm_medium=feed) Data Structure - LLDs - ( 1 Week ) List of data structures Lists Design Linked List Design Skiplist Stacks Implement Stack using Queues Design a Stack With Increment Operation LRU Cache Min Stack Max Stack Dinner Plate Stacks Implement ... 7 min read · [oganaa.hashnode.dev](https://oganaa.hashnode.dev/12-week-program-leetcode?utm_source=hashnode&utm_medium=feed) [Aug 19, 2025](https://hashnode.com/posts/12-week-program-leetcode/68a5006ec7bea176404ada84) ### [Graph Problems For Practice](https://oganaa.hashnode.dev/graph-problems-for-practice?utm_source=hashnode&utm_medium=feed) Graph for beginner, including Union Find dsa,Bfs,Dfs,Bipartite, Cycle Find, Topological Sort,Shortest Path(Bellman Ford/ Djkstra) 7 min read · [oganaa.hashnode.dev](https://oganaa.hashnode.dev/graph-problems-for-practice?utm_source=hashnode&utm_medium=feed) [Aug 19, 2025](https://hashnode.com/posts/graph-problems-for-practice/68a4d70529b60e22c5c3b596)