# This content is archived!

For the 2018-2019 school year, we have switched to using the WLMOJ judge for lesson information, no new lessons will be added here.

Online lessons

Problems

Editorials

# Meeting Workshops

## Junior lessons

Lesson 1: 2017-10-03
Intro
Lesson 2: 2017-10-10
Lesson 3: 2017-10-17
Loops
Lesson 4: 2017-10-24
Variables and User Input
Lesson 5: 2017-10-31
Logic and Conditionals
Lesson 6: 2017-11-07
String Manipulation
Lesson 7: 2017-11-14
Term Review
Lesson 8: 2017-11-21
GUI Windows
Lesson 9: 2017-11-28
Procedures and Functions
Lesson 10: 2017-12-05
Arrays
Lesson 11: 2017-12-12
GUI Buttons
Lesson 12: 2017-12-19
ISP Tips
Lesson 13: 2018-1-14
Exam Tips
Lesson 14: 2018-2-06
Mega Refresher 1
Lesson 15: 2018-2-13
Mega Refresher 2
Lesson 16: 2018-3-02
GD 1 Intro to Real-Time Games
Lesson 17: 2018-3-09
Lesson 17.5: 2016-4-6
GD 2.5 Level Up
Lesson 18: 2018-4-6
GD 3 Collisions
Lesson 19: 2018-4-12
Lesson 20: 2018-04-19
GD 5 Scrolling
Lesson 21: 2018-04-27
GD 6 Objects
Lesson 22: 2018-05-04
GD 7 Tiles
Lesson 23: 2018-05-18
GD 8 AI

## Intermediate lessons

Lesson 1: 2017-10-03
Introduction
Lesson 2: 2017-10-10
Conditionals
Lesson 3: 2017-10-17
Standard IO
Lesson 4: 2017-10-31
String Manipulation
Lesson 5: 2017-11-07
Loops
Lesson 6: 2017-11-14
Intro to Arrays
Lesson 7: 2017-11-21
Multidimensional Arrays
Lesson 8: 2017-11-28
More Arrays Problems
Lesson 9: 2017-12-05
File IO
Lesson 10: 2017-12-12
Math, Casting, and Parsing
Lesson 11: 2017-12-19
Winter Practice Problems
Lesson 12: 2018-01-09
Intro to OOP
Lesson 13: 2018-01-16
ICS3U Exam Review
Lesson 14: 2018-02-06
OOP Part 2
Lesson 15: 2018-02-20
OOP Part 3
Lesson 16: 2018-02-27
Recursion
Lesson 17: 2018-03-06
More Practice
Lesson 18: 2018-03-20
ArrayLists and More
Lesson 19: 2018-03-27
Searching Algorithms
Lesson 20: 2018-04-03
Sorting Algorithms: Selection and Insertion
Lesson 21: 2018-04-24
Sorting Algorithms: Merge and Quick

## Girls lessons

Lesson 1: 2017-10-05
Introduction and Logic Games
Lesson 2: 2017-10-12
IO in Turing and Java
Lesson 3J: 2017-10-18
Java: Variables, Maths, Parsing and String Manipulation
Lesson 3T: 2017-10-18
Turing: Variables and Maths operations
Lesson 4: 2017-10-25
Solutions to IO/Maths/String Problems
Lesson 5J: 2017-11-02
Java: Loops and String Manipulation
Lesson 5T: 2017-11-02
Turing: Loops and String Manipulation
Lesson 6: 2017-11-09
Arrays in Turing and Java
Lesson 7: 2017-11-16
2D/3D Arrays in Turing and Java
Lesson 8: 2017-11-23
Searching Arrays (Binary Search)
Lesson 9: 2017-11-30
Sorting Arrays (Selection Sort and Insertion Sort)
Lesson 10: 2017-12-07
Sorting Arrays (Bubble Sort)
Lesson 11: 2017-12-14
Flexible Arrays
Lesson 12: 2017-12-21
Christmas Problem Set
Lesson 13: 2018-01-11
Turing ISP help
Lesson 14: 2018-01-18
Exam Review
Lesson 15: 2018-02-08
CCC Prep

Lesson 0: 0000-00-00
Lesson 1: 2017-10-13
Time Complexity
Lesson 2: 2017-10-20
Data Structures
Lesson 3: 2017-11-10
Prefix Sum Array
Lesson 4: 2017-11-24
Prefix Difference Array
Lesson 5: 2017-12-15
Dynamic Programming
Lesson 6: 2018-01-12
Graph Theory (BFS/DFS)
Lesson 7: 2018-01-19
Problem Takeup + Code
Lesson 7.5: 2018-02-08
CCC Practice Problem List
Lesson 8: 2018-02-09
Dijkstra's Algorithm
Lesson 9: 2018-02-22
CCC 2018 Senior Solutions
Lesson 10: 2018-02-22
Kruskal's Algorithm
Lesson 11: 2018-03-01
JDCC 3 Senior Takeup
Lesson 12: 2018-03-08
Fenwick Tree
Lesson 13: 2018-04-19
Modular Arithmetic
Lesson 14: 2018-05-03
Binary Search

## Old lessons

Lesson 1: 2015-10-09
The Basics
Lesson 2: 2015-10-15
Basic Problems
Lesson 3: 2015-11-05
Problem Solutions
Lesson 3b: 2015-11-05
Weekly Problems
Lesson 4: 2015-11-05
Problem Solutions
Lesson 5: 2015-12-04
GREEDY!
Lesson 6: 2015-12-10
Applying Greedy
Lesson 7: 2016-01-08
Divide & Conquer