Given a Matrix, the task is to write a Python program that can sort its rows or columns on a measure of the number of values equal to its index number. For each row or column, count occurrences of equality of index number with value. After computation of this count for each row or column, sort the m

We are given a matrix (a list of lists) and an integer K. Our task is to reverse every Kth row in the matrix. For example:Input : a = [[5, 3, 2], [8, 6, 3], [3, 5, 2], [3, 6], [3, 7, 4], [2, 9]], K = 4 Output : [[5, 3, 2], [8, 6, 3], [3, 5, 2], [6, 3], [3, 7, 4], [2, 9]]Using reversed() and loopWe c

Given a String with matrix representation, the task here is to write a python program that converts it to a matrix. Input : test_str = "[gfg,is],[best,for],[all,geeks]"Output : [['gfg', 'is'], ['best', 'for'], ['all', 'geeks']]Explanation : Required String Matrix is converted to Matrix with list as

Given a Matrix, the task is to write a Python program to get the count frequency of its rows lengths. Input : test_list = [[6, 3, 1], [8, 9], [2], [10, 12, 7], [4, 11]] Output : {3: 2, 2: 2, 1: 1} Explanation : 2 lists of length 3 are present, 2 lists of size 2 and 1 of 1 length is present. Input :

Given a matrix with integer values, convert each element to String. Input : test_list = [[4, 5, 7], [10, 8, 3], [19, 4, 6]] Output : [['4', '5', '7'], ['10', '8', '3'], ['19', '4', '6']] Explanation : All elements of Matrix converted to Strings. Input : test_list = [[4, 5, 7], [10, 8, 3]] Output : [

Given a Tuple Matrix, flatten to tuple list with each tuple representing each column. Example: Input : test_list = [[(4, 5), (7, 8)], [(10, 13), (18, 17)]] Output : [(4, 7, 10, 18), (5, 8, 13, 17)] Explanation : All column number elements contained together. Input : test_list = [[(4, 5)], [(10, 13)]

Given a Matrix with two columns, group 2nd column elements on basis of 1st column. Input : test_list = [[5, 8], [2, 0], [5, 4], [2, 3], [2, 9]] Output : {5: [8, 4], 2: [0, 3, 9]} Explanation : 8 and 4 are mapped to 5 in Matrix, all others to 2. Input : test_list = [[2, 8], [2, 0], [2, 4], [2, 3], [2

Given a (N + 1) * N Matrix, assign each column of 1st row of matrix, the subsequent row of Matrix. Input : test_list = [[5, 8, 10], [2, 0, 9], [5, 4, 2], [2, 3, 9]] Output : {5: [2, 0, 9], 8: [5, 4, 2], 10: [2, 3, 9]} Explanation : 5 paired with 2nd row, 8 with 3rd and 10 with 4th Input : test_list

In this article, we will discuss how to add and subtract elements of the matrix in Python.  Example: Suppose we have two matrices A and B. A = [[1,2],[3,4]] B = [[4,5],[6,7]] then we get A+B = [[5,7],[9,11]] A-B = [[-3,-3],[-3,-3]] Now let us try to implement this using Python  1. Adding elements of

The task of converting a matrix to a dictionary in Python involves transforming a 2D list or matrix into a dictionary, where each key represents a row number and the corresponding value is the row itself. For example, given a matrix li = [[5, 6, 7], [8, 3, 2], [8, 2, 1]], the goal is to convert it i

Sometimes, while working with Python Matrix, we can have a problem in which we need to perform conversion of a Python Matrix to matrix of tuples which a value attached row-wise custom from external list. This kind of problem can have applications in data domains as Matrix is integral DS that is used

Sometimes, while working with Python Matrix, one can have a problem in which, one needs to extract all the rows that are a possible subset of any row of other Matrix. This kind of problem can have applications in data domains as a matrix is a key data type in those domains. Let's discuss certain way

Sometimes, while working with Python Matrix, we can have a problem in which we need to perform grouping of all the elements with are the same. This kind of problem can have applications in data domains. Let's discuss certain ways in which this task can be performed. Input : test_list = [1, 3, 4, 4,

Sometimes, while working with Python tuples, we can have a problem in which we need to perform Row-wise custom elements addition in Tuple matrix. This kind of problem can have application in data domains. Let's discuss certain ways in which this task can be performed.Input : test_list = [[('Gfg', 3)

Given an integer N. The task is to generate a square matrix of ( n x n ) having the elements ranging from 1 to n^2 with the following condition: The elements of the matrix should be distinct i.e used only onceNumbers ranging from 1 to n^2Every sub-matrix you choose should have the sum of opposite co

The splitfields() method is a user-defined method written in Python that splits any kind of data into a list of fields using a delimiter. The delimiter can be specified as an argument to the method, and if no delimiter is specified, the method splits the string using whitespace characters as the del

The task of getting a list of parameter names from a function in Python involves extracting the function's arguments using different techniques. These methods allow retrieving parameter names efficiently, whether from bytecode, introspection or source code analysis. For example, if a function fun(a,

An argument is a value that is passed within a function when it is called. They are independent items or variables that contain data or codes. At the time of function call each argument is always assigned to the parameter in the function definition. Example:Pythondef GFG(name, num): print("Hello fro

Given a number N and power P, the task is to find the power of a number ( i.e. NP ) using recursion. Examples: Input: N = 2 , P = 3Output: 8 Input: N = 5 , P = 2Output: 25 Approach: Below is the idea to solve the above problem: The idea is to calculate power of a number 'N' is to multiply that numbe

Sorting objects of a user-defined class in Python involves arranging instances of the class based on the values of one or more of their attributes. For example, if we have a class Person with attributes like name and age, we might want to sort a list of Person objects based on the age attribute to o

In Python, functions are first-class objects, meaning they can be assigned to variables, passed as arguments and returned from other functions. Assigning a function to a variable enables function calls using the variable name, enhancing reusability.Example:Python# defining a function def a(): print(

In Python, functions are first-class objects, allowing them to be assigned to variables, passed as arguments and returned from other functions. This enables higher-order functions, closures and dynamic behavior.Example:Pythondef fun1(name): def fun2(): return f"Hello, {name}!" return fun2 # Get the

The user-defined names that are given to Functions or variables are known as Identifiers. It helps in differentiating one entity from another and also serves as a definition of the use of that entity sometimes. As in every programming language, there are some restrictions/ limitations for Identifier

One amazing feature of Python is that it lets us create functions while our program is running, instead of just defining them beforehand. This makes our code more flexible and easier to manage. It’s especially useful for things like metaprogramming, event-driven systems and running code dynamically

Unlike other programming languages such as Java and C++, Python is a strongly, dynamically-typed language. This means that we do not have to explicitly specify the data type of function arguments or return values. Python associates types with values rather than variable names. However, if we want to

To pass a variable-length key-value pair as an argument to a function, Python provides a feature called **kwargs.kwargs stands for Keyword arguments. It proves to be an efficient solution when one wants to deal with named arguments (arguments passed with a specific name (key) along with their value)

Finding the number of arguments in a Python function means checking how many inputs a function takes. For example, in def my_function(a, b, c=10): pass, the total number of arguments is 3. Some methods also count special arguments like *args and **kwargs, while others only count fixed ones.Using ins

Checking if a Python variable exists means determining whether a variable has been defined or is available in the current scope. For example, if you try to access a variable that hasn't been assigned a value, Python will raise a NameError. Let’s explore different methods to efficiently check if a va

A function signature in Python defines the name of the function, its parameters, their data types , default values and the return type. It acts as a blueprint for the function, showing how it should be called and what values it requires. A good understanding of function signatures helps in writing c

Given a number and its base, the task is to convert the given number into its corresponding decimal number. The base of number can be anything like digits between 0 to 9 and A to Z. Where the value of A is 10, value of B is 11, value of C is 12 and so on. Examples: Input : '1011' base = 2 Output : 1

Given a list, the task is to write a Python program to check if the value exists in the list or not using the lambda function. Example: Input : L = [1, 2, 3, 4, 5] element = 4 Output : Element is Present in the list Input : L = [1, 2, 3, 4, 5] element = 8 Output : Element is NOT Present in the list

In this article, we will discuss the difference between normal 'def' defined function and 'lambda' function in Python.Def keyword​​​​​​​In Python, functions defined using def keyword are commonly used due to their simplicity. Unlike lambda functions, which always return a value, def functions do not

In Python, the lambda function is an anonymous function. This one expression is evaluated and returned. Thus, We can use lambda functions as a function object. In this article, we will learn how to iterate with lambda in python. Syntax: lambda variable : expression Where, variable is used in the exp

Lambda function can have multiple parameters but have only one expression. This one expression is evaluated and returned. Thus, We can use lambda functions as a function object. In this article, we will learn how to use if, else & elif in Lambda Functions.Using if-else in lambda functionThe lamb

The lambda function is an anonymous function. It can have any number of arguments but it can only have one expression. Syntax lambda arguments : expression In this article, we will learn how to find the smaller value between two elements using the Lambda function. Example: Input : 2 5 Output : 2 Inp

In Python, Lambda function is an anonymous function, which means that it is a function without a name. It can have any number of arguments but only one expression, which is evaluated and returned. It must have a return value. Since a lambda function must have a return value for every valid input, we

In Python, we use the lambda keyword to declare an anonymous function. Lambda function behaves in the same way as regular functions behave that are declared using the 'def' keyword. The following are some of the characteristics of Python lambda functions: A lambda function can take more than one num

List comprehension is an elegant way to define and create a list in Python. We can create lists just like mathematical statements and in one line only. The syntax of list comprehension is easier to grasp. A list comprehension generally consists of these parts :Output expression,Input sequence,A vari

Prerequisites: Python lambda In Python, anonymous function means that a function is without a name. As we already know the def keyword is used to define the normal functions and the lambda keyword is used to create anonymous functions. When we use lambda function inside another lambda function then

In Python, an anonymous function means that a function is without a name. As we already know that def keyword is used to define the normal functions and the lambda keyword is used to create anonymous functions.Python lambda Syntax:lambda arguments : expressionPython lambda Example:Pythoncalc = lambd

Given two strings (of lowercase letters), a pattern and a string. The task is to sort string according to the order defined by pattern and return the reverse of it. It may be assumed that pattern has all characters of the string and all characters in pattern appear only once. Examples: Input : pat =

The Fibonacci numbers are the numbers in the following integer sequence. 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ........ In mathematical terms, the sequence Fn of Fibonacci numbers is defined by the recurrence relation Fn = Fn-1 + Fn-2 with seed values F0 = 0 and F1 = 1. Find the series of fi

What are lambda expressions? A lambda expression is a special syntax to create functions without names. These functions are called lambda functions. These lambda functions can have any number of arguments but only one expression along with an implicit return statement. Lambda expressions return func

In Python working with lists is a common task and one of the frequent operations is counting how many even and odd numbers are present in a given list. The collections.Counter method is the most efficient for large datasets, followed by the filter() and lambda approach for clean and compact code. Us

Finding the intersection of two arrays using a lambda expression and the filter() function means filtering elements from one array that exist in the other. The lambda defines the condition (x in array2), and filter() applies it to the first array to extract common elements.For example, consider two

Given an integer n, the task is to write a python program to print diamond using loops and mathematical formulations. The minimum value of n should be greater than 4. Examples : For size = 5 * * * * * * * * * * * * For size = 8 * * * * * * * * * * * * * * * * * * * * * * * * * * For size = 11 * * *

Given an even integer input, the task is to write a Python program to print a heart using loops and mathematical formulations. Example :For n = 8 * * * * * * * * * * G F G * * * * * * * * For n = 14 * * * * * * * * * * * * * * * * * * G F G * * * * * * * * * * * * * * Approach : The following steps

Given a number n, the task is to write a Python program to print a half-diamond pattern of numbers with a star border. Examples: Input: n = 5 Output: * *1* *121* *12321* *1234321* *123454321* *1234321* *12321* *121* *1* * Input: n = 3 Output: * *1* *121* *12321* *121* *1* * Approach: Two for loops w

Pascal's triangle is a pattern of the triangle which is based on nCr, below is the pictorial representation of Pascal's triangle.Example:Input: N = 5Output: 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1Method 1: Using nCr formula i.e. n!/(n-r)!r!After using nCr formula, the pictorial representation becomes: 0C0 1C0

Let us see how to print an inverted heart pattern in Python. Example: Input: 11 Output: * *** ***** ******* ********* *********** ************* *************** ***************** ******************* ********************* ********* ******** ******* ****** ***** **** Input: 15 Output: * *** ***** *****

Give an integer N and the task is to print hollow half diamond pattern. Examples: Input : 6 Output : # # # # # # # # # # # # # # # # # # # # Input : 7 Output : # # # # # # # # # # # # # # # # # # # # # # # # Approach: The idea is to break the pattern into two parts: Upper part: For the upper half st

Given a number n, the task is to print 'K' using alphabets.Examples: Input: n = 5 Output: A B C D E F A B C D E A B C D A B C A B A A A B A B C A B C D A B C D E A B C D E F Input: n = 3 Output: A B C D A B C A B A A A B A B C A B C D Below is the implementation. C++ // C++ Program to design the //

Given an integer N, the task is to print half-diamond-star pattern. ************************************ Examples: Input: N = 3 Output: * ** *** ** * Input: N = 6 Output: * ** *** **** ***** ****** ***** **** *** ** * Approach: The idea is to break the pattern into two halves that is upper half and

Print the pattern in which there is a hollow square and plus sign inside it. The pattern will be as per the n i.e. number of rows given as shown in the example. Examples: Input : 6 Output : * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Input : 7 Output : * * * * * * * * * * * * * *

Given an integer N, the task is to print a number diamond of size N in rangoli style where N means till Nth number from number ‘1’. Examples: Input : 2 Output : --2-- 2-1-2 --2-- Input : 3 Output : ----3---- --3-2-3-- 3-2-1-2-3 --3-2-3-- ----3---- Input : 4 Output : ------4------ ----4-3-4---- --4-3

Given a number n. The task is to print n-integers n-times (starting from 1) and right rotate the integers by after each iteration.Examples: Input: 6 Output : 1 2 3 4 5 6 2 3 4 5 6 1 3 4 5 6 1 2 4 5 6 1 2 3 5 6 1 2 3 4 6 1 2 3 4 5 Input : 3 Output : 1 2 3 2 3 1 3 1 2 Method 1: Below is the implementa

The program must accept an integer N as the input. The program must print the desired pattern as shown in the example input/ output. Examples: Input : 41325 Output : |**** |* |*** |** |***** Explanation: for a given integer print the number of *'s that are equivalent to each digit in the integer. He

Programming's core function is printing text, but have you ever wished to give it a unique look by utilizing your own custom fonts? Python enables you to use imagination and overcome the standard fonts in your text outputs. In this article, we will do some cool Python tricks. For the user input, the

An inverted star pattern involves printing a series of lines, each consisting of stars (*) that are arranged in a decreasing order. Here we are going to print inverted star patterns of desired sizes in Python Examples: 1) Below is the inverted star pattern of size n=5 (Because there are 5 horizontal

Given a number n, write a program to print a diamond shape with 2n rows.Examples : C++ // C++ program to print diamond shape // with 2n rows #include <bits/stdc++.h> using namespace std; // Prints diamond pattern with 2n rows void printDiamond(int n) { int space = n - 1; // run loop (parent lo