I started algorithms with this lecture. It was very helpful.

wnstn96189472

This course is for those preparing for coding tests in Java. It covers the top 10 topics that are most frequently tested in coding tests. It is structured step by step from basic to intermediate problems linked to the topic, so if you follow it step by step, you will get good results.

codingcamp

Introduction to Java Algorithm Problem Solving: Coding Test Preparation

입문

초급

중급이상

자바

Java

Coding Test

Grading site link and lecture materials


String


Array (1 and 2-dimensional array)


Two pointers, Sliding window [Efficiency: O(n^2) --> O(n)]


HashMap, TreeSet (Hash, Sorting-supported Set)


Stack, Queue (Data Structures)


Sorting and Searching


Recursion, Tree, Graph (Basics of DFS, BFS)


Using DFS and BFS


Greedy Algorithm


dynamic programming
