CS-HTIEW

Solution 2

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CS-HTIEW

Computer Science: Hard Topics in Easiest Way
Contact
Lesson scenarios
Lesson scenarios
- Introduction to algortihms
  Introduction to algortihms
  - Lesson 1
  - Lesson 2
  - Lesson 3
  - Lesson 4
- Introduction to variables
  Introduction to variables
  - Lesson 1
  - Lesson 2
  - Lesson 3
  - Lesson 4
- Introduction to functions
  Introduction to functions
  - Lesson 1
  - Lesson 2
  - Lesson 3
  - Lesson 4
  - Lesson 5
- Introduction to recursion
  Introduction to recursion
  - Lesson 1
  - Lesson 2
  - Lesson 3
  - Lesson 4
- Programming topics
  Programming topics
Computer Science didactics
Computer Science didactics
Algorithms
Algorithms
- Introduction
  Introduction
- Searching
  Searching
- Backtracking
  Backtracking
- Sorting
  Sorting
- Algorithms on integers
  Algorithms on integers
  - All divisors
  - Prime test
  - Perfect test
  - Prime factors
  - Eratosthenes sieve
  - Segment sieve
  - Euclides algorithm
  - Extended Euclides algorithm
  - Fibonacci numbers
  - Problem bankomatu
    
    Problem bankomatu
    
    Greedy solution
    
    Dynamic solution
  - Double factorial
  - Subfactorial
  - Primorial
  - Superfactorial
- Numeral systems
  Numeral systems
- Numerical methods
  Numerical methods
- Text
  Text
- Coding and compression
  Coding and compression
  - ASCII codes
  - Huffman codes
- Cryptography
  Cryptography
  - Symmetric encryption methods
    
    Symmetric encryption methods
    
    Caesar cipher
    
    Vigenere cipher
    
    Rail-fence cipher
    
    Playfair cipher
    
    ROT13 cipher
    
    Beauforta cipher
    
    Trithemius cipher
  - Assymetric cryptography
    
    Assymetric cryptography
    
    RSA
- Matrix
  Matrix
  - The determinant of a 3x3 matrix
- 2D geometry
  2D geometry
- Fractals
  Fractals
- Data structures
  Data structures
- Graphs
  Graphs
Programming
Programming
- Pascal
  Pascal
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- C++
  C++
  - Introduction
    
    Introduction
    
    Template
    
    Introduction to variables
    
    Basic types of variables
    
    Arithmetic operations
    
    Mathematical functions
    
    Input/output - streams
    
    Files - streams
    
    Conditional statement
    
    Conditional loop
    
    Iterative loop
    
    Static arrays
    
    Functions
    
    Input/output - printf and scanf
    
    Bitwise operations
    
    Pointers
    
    Exceptions
    
    OOP
    
    OOP
    
    Structures
    
    Classes
    
    Enumerations
    
    Operators overloading
    
    Templates
    
    Namespaces
    
    Abstract classes
    
    Casting
    
    STL
    
    STL
    
    Sorting
    
    Static array
    
    Dynamic arrays
    
    Lists
    
    Stack
    
    Queue
    
    Set
    
    Map
    
    Command-line compilation
  - Exercises
    
    Exercises
    
    Handling input/output
    
    Handling input/output
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Conditional statement
    
    Conditional statement
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Conditional loop
    
    Conditional loop
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Iterative loop
    
    Iterative loop
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Tablice statyczne
    
    Tablice statyczne
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Functions
    
    Functions
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    STL
    
    STL
    
    Solution 1
    
    Solution 2
    
    Object oriented programming
  - Simulations
    
    Simulations
    
    Wężyk
    
    Robot w labiryncie
    
    Prosta ścieżka w labiryncie
    
    Labirynt
    
    Labirynt - szablon
    
    Rekurencja w labiryncie
    
    Saper
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Searching for both min and max
    
    Finding majority element
    
    Longest growing substring
    
    Sum of two numbers
    
    Prefix sums
    
    Backtracking
    Backtracking
    
    N queens problem
    
    Knight tour
    
    Sorting
    Sorting
    
    Selection sort
    
    Insertion sort
    
    Counting sort
    
    Bubble sort
    
    Merge sort
    
    Heap sort
    
    Quick sort
    
    Gnome sort
    
    Cocktail-shaker sort
    
    Comb sort
    
    Odd-even sort
    
    Shell sort
    
    Stooge sort
    
    Slow sort
    
    Algorithms on integers
    Algorithms on integers
    
    All divisors
    
    Prime test
    
    Perfect test
    
    Prime factors
    
    Eratosthenes sieve
    
    Segment sieve
    
    GCD
    
    Extended Euclides algorithm
    
    Fibonacci numbers
    
    Change
    
    Numeral systems
    Numeral systems
    
    Base conversion
    
    Numerical methods
    Numerical methods
    
    Horner scheme
    
    Square root
    
    Numerical integration
    
    Simpson integration
    
    Fast exponentiale
    
    Monte Carlo method
    
    Text
    Text
    
    Palindrome
    
    Anagrams
    
    Naive substring search
    
    RPN
    
    Longest common subsequence
    
    Hamming distance
    
    Levenshtein "edit" distance
    
    Coding and compression
    Coding and compression
    
    ASCII codes
    
    Huffman codes
    
    Cryptography
    Cryptography
    
    Caesar cipher
    
    Vigenere cipher
    
    Rail-fence cipher
    
    Playfair cipher
    
    ROT13 cipher
    
    Beauforta cipher
    
    Trithemius cipher
    
    Matrix
    Matrix
    
    The determinant of a 3x3 matrix
    
    2D geometry
    2D geometry
    
    Triangle condition
    
    Point from line distance
    
    Point on segment
    
    Segment crossing
    
    Fractals
    
    Fractals
    
    Binary tree
    
    Sierpiński triangle
    
    Sierpiński square
    
    Koch curve
    
    Koch snowflake
    
    Peano curve
    
    Dragon curve
    
    Minkowski Sausage
    
    Cantor dust
    
    Data structures
    Data structures
    
    Stack
    
    Queue
    
    Singly linked list
    
    Double linked list
    
    Disjoint set union
    
    Binary search trees
    
    Segment trees
    
    Fenwick trees
    
    Graphs
    Graphs
    
    DFS
    
    Connected components
    
    BFS
    
    Dijkstra
    
    Floyd Warshall
    
    Prim
    
    Kruskal
    
    Topological sort
    
    Flood Fill
- Python 3
  Python 3
  - Introduction
    
    Introduction
    
    Comments
    
    Variables
    
    Operators
    
    Input/Output
    
    Conditional statement
    
    Loops
    
    Lists
    
    Tuples
    
    Dictionaries
    
    Functions
    
    Files
    
    Performance
    
    Classes
  - Exercises
    
    Exercises
    
    Handling input/output
    
    Handling input/output
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Conditional statement
    
    Conditional statement
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Conditional loop
    
    Conditional loop
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Iterative loop
    
    Iterative loop
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Lists
    
    Lists
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Functions
    
    Functions
    
    Solution 1
    
    Solution 2
    
    Solution 3
  - Simulations
    Simulations
    
    A*
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Searching for both min and max
    
    Finding majority element
    
    Longest growing substring
    
    Sum of two numbers
    
    Prefix sums
    
    Backtracking
    Backtracking
    
    N queens problem
    
    Knight tour
    
    Permutations
    
    Sorting
    Sorting
    
    Selection sort
    
    Insertion sort
    
    Counting sort
    
    Bubble sort
    
    Merge sort
    
    Heap sort
    
    Quick sort
    
    Gnome sort
    
    Cocktail-shaker sort
    
    Comb sort
    
    Odd-even sort
    
    Shell sort
    
    Stooge sort
    
    Slow sort
    
    Algorithms on integers
    Algorithms on integers
    
    All divisors
    
    Prime test
    
    Prime factors
    
    Perfect test
    
    Eratosthenes sieve
    
    Segment sieve
    
    Euclides algorithm
    
    Extended Euclides algorithm
    
    Fibonacci numbers
    
    Change
    
    Double factorial
    
    Subfactorial
    
    Primorial
    
    Superfactorial
    
    Numeral systems
    Numeral systems
    
    Base conversion
    
    U2 conversion
    
    Numerical methods
    Numerical methods
    
    Horner scheme
    
    Square root
    
    Numerical integration
    
    Simpson integration
    
    Fast exponentiale
    
    Monte Carlo method
    
    Text
    Text
    
    Palindrome
    
    Anagrams
    
    Naive substring search
    
    RPN
    
    Longest common subsequence
    
    Hamming distance
    
    Levenshtein "edit" distance
    
    Coding and compression
    Coding and compression
    
    ASCII codes
    
    Huffman codes
    
    Cryptography
    Cryptography
    
    Caesar cipher
    
    Vigenere cipher
    
    Rail-fence cipher
    
    Playfair cipher
    
    ROT13 cipher
    
    Beauforta cipher
    
    Trithemius cipher
    
    Matrix
    Matrix
    
    The determinant of a 3x3 matrix
    
    2D geometry
    2D geometry
    
    Triangle condition
    
    Point from line distance
    
    Point on segment
    
    Segment crossing
    
    Fractals
    Fractals
    
    Binary tree
    
    Sierpiński triangle
    
    Sierpiński square
    
    Koch curve
    
    Koch snowflake
    
    Peano curve
    
    Dragon curve
    
    Minkowski Sausage
    
    Cantor dust
    
    Data structures
    Data structures
    
    Stack
    
    Queue
    
    Singly linked list
    
    Double linked list
    
    Disjoint set union
    
    Drzewo przeszukiwań binarnych
    
    Segment trees
    
    Graphs
    Graphs
    
    DFS
    
    Connected components
    
    BFS
    
    Dijkstra
    
    Floyd-Warshall
    
    Prim
    
    Kruskal
    
    Topological sort
    
    Flood fill
  - Data science
    
    Data science
    
    Pandas
    
    Pyplot
    
    Seaborn
- Blockly
  Blockly
  - Blockly games
    Blockly games
    
    Maze
    
    Bird
    
    Turtle
    
    Animation
    
    Pond tutorial
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Searching for min or max
    
    Linear search
    
    Binary search
    
    Sorting
    Sorting
    
    Selection sort
    
    Counting sort
    
    Algorithms on integers
    Algorithms on integers
    
    GCD
    
    LCM
    
    Fractals
    Fractals
    
    Binary tree
    
    Sierpiński triangle
    
    Sierpiński square
    
    Koch curve
    
    Koch snowflake
    
    Peano curve
    
    Dragon curve
    
    Minkowski Sausage
    
    Cantor dust
- C
  C
  - Introduction
    
    Introduction
    
    Handling input/output
    
    Structures
    
    Enumerations
    
    Projects
    
    Command line compilation
    
    Input as parameters
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Searching for both min and max
    
    Finding majority element
    
    Longest growing substring
    
    Sum of two numbers
    
    Prefix sums
    
    Structures
    Structures
    
    Stack
    
    Queue
- Dart
  Dart
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Elixir
  Elixir
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Go
  Go
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Haskell
  Haskell
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Sum of two numbers
    
    Algorithms on integers
    Algorithms on integers
    
    All divisors
    
    Prime test
    
    Perfect test
    
    Prime factors
    
    Euclides algorithm
    
    Fibonacci numbers
- JavaScript
  JavaScript
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Julia
  Julia
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Searching for both min and max
    
    Finding majority element
    
    Longest growing substring
    
    Backtracking
    Backtracking
    
    N queens problem
    
    Sorting
    Sorting
    
    Bubble sort
    
    Merge sort
    
    Quick sort
    
    Numerical methods
    Numerical methods
    
    Fast exponentiale
    
    Monte Carlo method
- Kotlin
  Kotlin
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
    
    Binary search
    
    Searching for min or max
    
    Searching for both min and max
    
    Finding majority element
    
    Longest growing substring
    
    Sum of two numbers
    
    Backtracking
    Backtracking
    
    N queens problem
    
    Permutations
    
    Sorting
    Sorting
    
    Selection sort
    
    Insertion sort
    
    Counting sort
    
    Bubble sort
    
    Merge sort
    
    Heap sort
    
    Quick sort
    
    Gnome sort
    
    Cocktail-shaker sort
    
    Comb sort
    
    Odd-even sort
    
    Algorithms on integers
    Algorithms on integers
    
    All divisors
    
    Prime test
    
    Prime factors
    
    Perfect test
    
    Eratosthenes sieve
    
    GCD
    
    Fibonacci numbers
    
    Numerical methods
    Numerical methods
    
    Numerical integration
- Lua
  Lua
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
  - Simulations
    Simulations
    
    Gra w życie
- Rust
  Rust
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Scheme
  Scheme
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Swift
  Swift
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- TypeScript
  TypeScript
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
- Visual Basic
  Visual Basic
  - Algorithms
    Algorithms
    
    Searching
    Searching
    
    Linear search
Algorytmika - zadania
Algorytmika - zadania
- Level 0
  Level 0
  - Comparing numbers
    
    Comparing numbers
    
    Pseudocode
    
    Block diagram
    
    Python
    
    C++
    
    Blockly
  - Cutting costs
    
    Cutting costs
    
    Pseudocode
    
    Block diagram
  - Packing for the vacations
    
    Packing for the vacations
    
    Pseudocode
    
    Block diagram
  - Szkolna fizyka
- Level 1
  Level 1
  - Automated Checking Machine
    
    Automated Checking Machine
    
    Solution C++
    
    Solution Python
  - Search the Khoj
    
    Search the Khoj
    
    Solution C++
    
    Solution Python
  - Strategy Game
    
    Strategy Game
    
    Solution C++
    
    Solution Python
  - Ultimate Mango Challenge
    
    Ultimate Mango Challenge
    
    Solution C++
    
    Solution Python
  - Sum of odd
  - Different digits
  - Sequence differences
  - Sale
  - Permutation
  - Newspaper
  - Image coding
  - Brackets
  - Byte warriors
  - Robot
- Level 2
  Level 2
- Level 3
  Level 3
  - Andy First Dictionary
    
    Andy First Dictionary
    
    Solution C++
  - Babelfish
    
    Babelfish
    
    Solution C++
    
    Solution Python
  - Genes
    
    Genes
    
    Solution C++
    
    Solution Python
  - Hay Points
    
    Hay Points
    
    Solution C++
    
    Solution Python
  - List of Conquests
    
    List of Conquests
    
    Solution C++
    
    Solution Python
  - Password Search
    
    Password Search
    
    Solution C++
    
    Solution Python
  - Slogan Learning of Princess
    
    Slogan Learning of Princess
    
    Solution C++
    
    Solution Python
  - Unique Snowflakes
    
    Unique Snowflakes
    
    Solution C++
    
    Solution Python
  - Word Index
    
    Word Index
    
    Solution C++
- SZKOpuł
  SZKOpuł
  - 10 Wspaniałych
    
    10 Wspaniałych
    
    C++
  - 210
    
    210
    
    C++
    
    Python
  - Akcje
    
    Akcje
    
    C++
  - Anagrams
    Anagrams
    
    None
    
    C++
  - Astronom Janusz
    
    Astronom Janusz
    
    C++
  - Awantura o czapki
    
    Awantura o czapki
    
    C++
  - Gra
    
    Gra
    
    C++
  - Kamyki
    
    Kamyki
    
    C++
  - Pikieta
    
    Pikieta
    
    C++
  - Tarasy
    
    Tarasy
    
    C++
- Olimpiada Informatyczna Juniorów
  Olimpiada Informatyczna Juniorów
  - ... albo psikus!
    
    ... albo psikus!
    
    C++
    
    Python
  - Basen
    
    Basen
    
    C++
  - Bierki
    
    Bierki
    
    C++
    
    Python
  - H4x0r
    
    H4x0r
    
    C++
    
    Python
  - Skarpetki
    
    Skarpetki
    
    C++
  - Wynik meczu
    
    Wynik meczu
    
    C++
  - Zmiennoliterowe słowo
    
    Zmiennoliterowe słowo
    
    C++
- Olimpiada Informatyczna
  Olimpiada Informatyczna
  - Anagrams
    Anagrams
    
    None
    
    C++
    
    Python
  - Gra w dzielniki
    
    Gra w dzielniki
    
    C++
  - Gra w minima
    
    Gra w minima
    
    C++
  - Minusy
    
    Minusy
    
    C++
    
    Python
- Potyczki Algorytmiczne
  Potyczki Algorytmiczne
  - A+B
    
    A+B
    
    C++
Learning programming through game development
Learning programming through game development
- Python 3
  Python 3
  - Introduction
    
    Introduction
    
    Silly game
    
    Dice simulator
    
    Guessing game
  - 2d games - Pygame Zero
    
    2d games - Pygame Zero
    
    Catch the Sun
    
    Hungry pig
    
    Flappy Bird
    
    Pong
    
    Asteroids
    
    Cosmos
    
    Idle game
  - 2D games - pixelpad.io
    
    2D games - pixelpad.io
    
    Fruit Ninja
  - Online games
    
    Online games
    
    Echo
  - Artificial intelligence
    
    Artificial intelligence
    
    Gra w monety z AI
- Lua
  Lua
- JavaScript
  JavaScript
  - Hungry pig
  - Catch the alien
Computer graphics
Computer graphics
- Color Spaces
- Gimp
  Gimp
  - Tutorials
    
    Tutorials
    
    Vintage effect
    
    Color reveal
Web desing
Web desing
- CSS
Spreadsheet
Spreadsheet
- Auto-fill
- Addressing
- Pivot table
- VBA
  VBA
  - Exercises
    
    Exercises
    
    Basics
    
    Basics
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Advanced
    
    Advanced
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
Databases
Databases
- Introduction
  Introduction
  - Datatypes
  - Relations
- SQL
  SQL
  - JOIN
    JOIN
    
    JOIN
  - Exercises
    
    Exercises
    
    SELECT
    
    SELECT
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Solution 9
    
    WHERE
    
    WHERE
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Solution 9
    
    Solution 10
    
    ORDER BY
    
    ORDER BY
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    JOIN
    
    JOIN
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Solution 7
    
    Solution 8
    
    Solution 9
    
    Solution 10
    
    GROUP BY
    
    GROUP BY
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
Linux
Linux
- Introduction to Linux
- Folders
- Files
- Permissions
- Processes
- Grep
- Bash
  Bash
- AWK
  AWK
- Perl
  Perl
Networking
Networking
- Glossary
- Network topology
- OSI model
- Network addressing
- Protocols
  Protocols
  - IP protocol
  - DHCP
  - TCP and UDP
  - HTTP and HTTPS
  - DNS
  - E-mail communication protocols
  - FTP
  - SSH
- Wireshark
  Wireshark
  - HTTP Requests
  - HTTPS connections
Ethical hacking
Ethical hacking
- Tools
  Tools
  - Nmap
  - Netcat
  - Tcpdump
  - Metasploit
  - Aircrack-ng
  - John the Ripper
  - Hashcat
  - Hydra
  - Binwalk
  - SQLmap
  - Steghide
  - Stegosuite
  - Volatility
  - Snort
  - Nikto
- CTF
- Password
Artificial intelligence
Artificial intelligence
Other topics
Other topics
Computer science high school exam
Computer science high school exam
- Preparation
  Preparation
  - Algorithmics
    Algorithmics
    
    Pseudocode analysis
    Pseudocode analysis
    
    Exercise 1
    
    Exercise 1
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Exercise 2
    
    Exercise 2
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Exercise 3
    
    Exercise 3
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Solution 6
    
    Exercise 4
    
    Exercise 4
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Exercise 5
    
    Exercise 5
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Exercise 6
    
    Exercise 6
    
    Solution 1
    
    Solution 2
    
    Recursion
    Recursion
    
    Exercise 1
    
    Exercise 1
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Exercise 2
    
    Exercise 2
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Solution 5
    
    Exercise 3
    
    Exercise 3
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Exercise 4
    
    Exercise 4
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Exercise 5
    
    Exercise 5
    
    Exercise 6
    
    Exercise 6
    
    Exercise 7
    
    Exercise 7
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Solution 4
    
    Simulations
    Simulations
    
    Huffman codes
    
    Huffman codes
    
    Solution 1
    
    Solution 2
    
    Tree of arithmetic expressions
    
    Tree of arithmetic expressions
    
    Solution 1
    
    Solution 2
    
    Solution 3
    
    Reverse Polish notation
    
    Reverse Polish notation
    
    Solution 1
    
    Solution 2
    
    Monte Carlo method
    
    Monte Carlo method
    
    Numerical integration
    
    Numerical integration
    
    List of numbers
    
    List of numbers
    
    Rozwiązania
    
    Triangular numbers
    
    Triangular numbers
    
    Odpowiedzi
    
    Niven numbers
    
    Niven numbers
    
    Odpowiedzi
    
    Gnomic numbers
    
    Gnomic numbers
    
    Odpowiedzi
  - Programming
    Programming
    
    Binary numbers
    
    Binary numbers
    
    Solution - C++
    
    Solution - Python
    
    Fractions
    
    Fractions
    
    Odpowiedzi
    
    Rozwiązania
    
    Butterfly
    
    Butterfly
    
    Odpowiedzi
    
    Rozwiązania
    
    Circle and square
    
    Circle and square
    
    Odpowiedzi
    
    Rozwiązania
    
    Brackets
    
    Brackets
    
    Odpowiedzi
    
    Solution - C++
    
    Solution - Python
    
    Duplicates
    
    Duplicates
    
    Odpowiedzi
    
    Rozwiązania
    
    Names
    
    Names
    
    Odpowiedzi
    
    Solution - C++
    
    Solution - Python
    
    Sequences
    
    Sequences
    
    Odpowiedzi
    
    Solution - C++
    
    Solution - Python
    
    Integers
    
    Integers
    
    Odpowiedzi
    
    Rozwiązania
    
    Groceries
    
    Groceries
    
    Odpowiedzi
    
    Points
    
    Points
    
    Odpowiedzi
    
    Maze
    
    Maze
    
    Odpowiedzi
    
    Solution - Python
    
    Rectangles
    
    Rectangles
    
    Odpowiedzi
    
    Solution - Python
    
    Dates
    
    Dates
    
    Odpowiedzi
    
    Rozwiązania
    
    Morse Alphabet
    
    Morse Alphabet
    
    Odpowiedzi
  - Spreadsheet
    Spreadsheet
    
    Shop
    
    Shop
    
    Odpowiedzi
    
    Solution
    
    Fruits
    
    Fruits
    
    Odpowiedzi
    
    Solution
    
    Colours
    
    Colours
    
    Solution
    
    Games
    
    Games
    
    Odpowiedzi
    
    Solution
    
    Pokomons
    
    Pokomons
    
    Solution
    
    River
    
    River
    
    Solution
    
    Books
    
    Books
    
    Solution
    
    Bakery
    
    Bakery
    
    Odpowiedzi
    
    Solution
    
    Restaurant
    
    Restaurant
    
    Odpowiedzi
  - Database
    Database
    
    Vampires
    
    Vampires
    
    Odpowiedzi
    
    Solution
    
    Commandos
    
    Commandos
    
    Odpowiedzi
    
    Solution
    
    Shop
    
    Shop
    
    Odpowiedzi
    
    Solution
  - SQL
    SQL
    
    Shop
    
    Shop
    
    Solution
    
    Commandos
    
    Commandos
    
    Solution
  - Repetition
    Repetition
    
    Repetition 1
    
    Repetition 1
    
    Rozwiązania
- Arkusze i rozwiązania
  Arkusze i rozwiązania
  - 2010
    
    2010
    
    Rozwiązania
  - 2011
    
    2011
    
    Rozwiązania
  - 2012
    
    2012
    
    Rozwiązania
  - 2013
    
    2013
    
    Rozwiązania
  - 2014
    
    2014
    
    Rozwiązania
  - 2015
    
    2015
    
    Rozwiązania
  - 2016
    
    2016
    
    Rozwiązania
  - 2017
    
    2017
    
    Rozwiązania
  - 2017 - czerwiec
    
    2017 - czerwiec
    
    Rozwiązania
  - 2018
    
    2018
    
    Rozwiązania
  - 2019
    
    2019
    
    Rozwiązania
  - 2020 - próbna CKE
    
    2020 - próbna CKE
    
    Rozwiązania
  - 2020
    
    2020
    
    Rozwiązania
  - 2021 - próbna CKE
    
    2021 - próbna CKE
    
    Rozwiązania
  - 2021
    
    2021
    
    Rozwiązania
  - 2022 - próbna CKE
    
    2022 - próbna CKE
    
    Rozwiązania
  - 2022
    
    2022
    
    Rozwiązania
  - 2023
    
    2023
    
    Rozwiązania
  - 2023 - czerwiec
    
    2023 - czerwiec
    
    Rozwiązania
  - Pytania zamknięte
Studies
Studies
- Podstawy algorytmiki i programowania
Useful links
Useful links
Useful tools
Useful tools
- CodeShare
- Replit
- Ideone

Zadanie 2 - rozwiązanie¶

`n`	liczba mnożeń
2	3
3	4
4	4
5	5
6	5
7	6

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