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30-2d-arrays.cpp
30-2d-arrays.cpp
 
 
30-2d-arrays.py
30-2d-arrays.py
 
 
30-abstract-classes.cpp
30-abstract-classes.cpp
 
 
30-abstract-classes.py
30-abstract-classes.py
 
 
30-arrays.cpp
30-arrays.cpp
 
 
30-arrays.py
30-arrays.py
 
 
30-binary-numbers.cpp
30-binary-numbers.cpp
 
 
30-binary-numbers.py
30-binary-numbers.py
 
 
30-binary-search-trees.py
30-binary-search-trees.py
 
 
30-binary-trees.cpp
30-binary-trees.cpp
 
 
30-binary-trees.py
30-binary-trees.py
 
 
30-bitwise-and.cpp
30-bitwise-and.cpp
 
 
30-class-vs-instance.py
30-class-vs-instance.py
 
 
30-conditional-statements.cpp
30-conditional-statements.cpp
 
 
30-data-types.cpp
30-data-types.cpp
 
 
30-data-types.py
30-data-types.py
 
 
30-dictionaries-and-maps.py
30-dictionaries-and-maps.py
 
 
30-exceptions-string-to-integer.cpp
30-exceptions-string-to-integer.cpp
 
 
30-exceptions-string-to-integer.py
30-exceptions-string-to-integer.py
 
 
30-generics.cpp
30-generics.cpp
 
 
30-hello-world.c
30-hello-world.c
 
 
30-hello-world.py
30-hello-world.py
 
 
30-inheritance.cpp
30-inheritance.cpp
 
 
30-interfaces.cpp
30-interfaces.cpp
 
 
30-linked-list-deletion.cpp
30-linked-list-deletion.cpp
 
 
30-linked-list.cpp
30-linked-list.cpp
 
 
30-linked-list.py
30-linked-list.py
 
 
30-loops.py
30-loops.py
 
 
30-more-exceptions.cpp
30-more-exceptions.cpp
 
 
30-nested-logic.cpp
30-nested-logic.cpp
 
 
30-operators.cpp
30-operators.cpp
 
 
30-operators.py
30-operators.py
 
 
30-queues-stacks.py
30-queues-stacks.py
 
 
30-recursion.py
30-recursion.py
 
 
30-regex-patterns.py
30-regex-patterns.py
 
 
30-review-loop.cpp
30-review-loop.cpp
 
 
30-review-loop.py
30-review-loop.py
 
 
30-running-time-and-complexity.cpp
30-running-time-and-complexity.cpp
 
 
30-running-time-and-complexity.py
30-running-time-and-complexity.py
 
 
30-scope.cpp
30-scope.cpp
 
 
30-scope.py
30-scope.py
 
 
30-sorting.cpp
30-sorting.cpp
 
 
30-testing.py
30-testing.py
 
 
CMakeLists.txt
CMakeLists.txt
 
 
README.md
README.md
 
 

README.md

Tutorials

30 Days of Code

Name Preview Code Difficulty
Day 0: Hello, World. Practice reading from stdin and printing to stdout. C Python Easy
Day 1: Data Types Get started with data types. C++ Python Easy
Day 2: Operators Start using arithmetic operators. C++ Python Easy
Day 3: Intro to Conditional Statements Get started with conditional statements. C++ Easy
Day 4: Class vs. Instance Learn the difference between class variables and instance variables. Python Easy
Day 5: Loops Let's talk about loops. Python Easy
Day 6: Let's Review Characters and Strings C++ Python Easy
Day 7: Arrays Getting started with Arrays. C++ Python Easy
Day 8: Dictionaries and Maps Mapping Keys to Values using a Map or Dictionary. Python Easy
Day 9: Recursion Use recursion to compute the factorial of number. Python Easy
Day 10: Binary Numbers Find the maximum number of consecutive 1's in the base-2 representation of a base-10 number. C++ Python Easy
Day 11: 2D Arrays Find the maximum sum of any hourglass in a 2D-Array. C++ Python Easy
Day 12: Inheritance Learn about inheritance. C++ Easy
Day 13: Abstract Classes Build on what you've already learned about Inheritance with this Abstract Classes challenge C++ Python Easy
Day 14: Scope Learn about the scope of an identifier. C++ Python Easy
Day 15: Linked List Complete the body of a function that adds a new node to the tail of a Linked List. C++ Python Easy
Day 16: Exceptions - String to Integer Can you determine if a string can be converted to an integer? C++ Python Easy
Day 17: More Exceptions Throw an exception when user sends wrong parameters to a method. C++ Easy
Day 18: Queues and Stacks Use stacks and queues to determine if a string is a palindrome. Python Easy
Day 19: Interfaces Welcome to Day 19! Learn about interfaces in this challenge! C++ Easy
Day 20: Sorting Find the minimum number of conditional checks taking place in Bubble Sort C++ Easy
Day 21: Generics Welcome to Day 21! Review generics in this challenge! C++ Easy
Day 22: Binary Search Trees Given a binary tree, print its height. Python Easy
Day 23: BST Level-Order Traversal Implement a breadth-first search! C++ Python Easy
Day 24: More Linked Lists Welcome to Day 24! Review everything we've learned so far and learn more about Linked Lists in this challenge. C++ Easy
Day 25: Running Time and Complexity Determine if a number is prime in optimal time! C++ Python Medium
Day 26: Nested Logic Test your understanding of layered logic by calculating a library fine! C++ Easy
Day 27: Testing Welcome to Day 27! Review testing in this challenge! Python Easy
Day 28: RegEx, Patterns, and Intro to Databases Review Pattern documentation and start using Regular Expressions Python Medium
Day 29: Bitwise AND Apply everything we've learned in this bitwise AND challenge. C++ Medium