Drill Insight

Drill-Coder

Introduction to Algorithms【2025】

60 hours of study 4 tests 230 high-frequency problems 8 common algorithms 1 fixed service + 1 selected service

Introduction to Algorithms【2025】

Experienced teachers teach you how to build a solid foundation for algorithms and combine practical skills and logical training to rapidly enhance your core algorithm skills. With the Drill coder platform, you will have a fundamental algorithm knowledge, practice algorithmic learning techniques efficiently as well as receive real-time feedback.

60 hours of study
4 tests
230 high-frequency problems
8 common algorithms
1 fixed service + 1 selected service

Who Is This Course For:

People with Weak Foundations in Algorithms:

Those who have an interest in programming and possess some experience,

but need to strengthen their Java fundamentals.
Beginners:

People who are interested in programming

with no prior experience
Career Switchers:

People who wish to work in the IT areas from other industries,

especially for people working in software development.

You will learn

Master fundamental Java syntax and core concepts including the utilization of the Collection framework.
Understand and apply key data structures (e.g., queues, stacks, trees) in real-world projects.
Master classic algorithms such as binary search, Depth-First Search (DFS) and Breadth-First Search (BFS).
Learn dual-pointer and sliding window techniques to efficiently solve problems of range and sequence.
Consolidate your algorithmic foundation and programming skills through in-depth practice with classic problems.

Course Highlights

Quick Reinforcement of Java Knowledge

You will master Java's core syntax, collection framework, and common usages through systematic learning

Intensive Explanation of Algorithms

You will master common algorithmic knowledge and basic questions including binary search, DFS, BFS, sliding window and other classic techniques to rapidly enhance programming abilities and build a solid foundation for algorithms and data structures

Senior Tutor Team

Senior tutors from top companies with extensive teaching experience help students quickly get started and grasp key points by using visual and textual teaching materials, providing high-quality teaching content specifically for beginners and learners with weak foundations

Exclusive Interactive Practice Platform

The self-developed Drill Insight platform offers a comprehensive algorithm question bank, tightly integrating theory with practice and providing real-time assessment of learning effects

Interactive Learning Experience

An online Q&A and discussion forum is established as an interactive platform that will resolve student’s learning issues quickly. In this platform, students can ask questions at any time during their learning process and obtain assistance promptly

Formulaic Problem-Solving Approach

By learning classic problem-solving methods, students can enhance their efficiency in solving problems, enabling them to quickly organize their thoughts and provide correct answers in real interview scenarios

Career Guidance Services

According to the job market demands in North America, we provide customized job search services for students, including resume optimization, mock interviews, and other career-enhancing services to enhance their competitiveness in the job market

Course Outline

Quickly understand key concepts and course structure to clarify your learning path

Java Basic
OOP Principle
Data Structures
Binary Search
Two Pointers
String and Array Manipulation
Graph Algorithms

Designer & Lecturer

Successful Stories

3w+ Real Admission Offer

Your guide to IT job hunting

7 years of experience

Student Review

Finding it difficult to land a job after graduation, I decided to switch to the IT industry. I enrolled in an algorithm course, and with the help of Teacher Zack, I went from just memorizing to truly understanding the essence of algorithms. He simplified complex problems and helped me solve them successfully, ultimately leading to me receiving an offer.

Jason Liu
I have a foundation in programming and algorithms. I first encountered DrillInsight because of its question bank, and I must say, the content is excellent. It covers real questions from both major tech companies and non-IT companies. In the end, I successfully passed the interview. Thanks to the teachers for their dedication and help!

Yifan Yao
I am a CS major, strong in programming but weak in algorithms, which made job hunting difficult. I chose an algorithm course, where a full-time teacher taught from the fundamentals, helping me truly understand the 3Ws of algorithms (what, why, when). Beyond the course, the teacher also shared valuable interview tips. The course left a deep impression on me.

Eric Wang