Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Programming Articles
Page 285 of 2547
Python program to get average heights of distinct entries
Suppose we have a set of heights where there may be some duplicate entries. We need to find the average of distinct entries from these heights. So, if the input is like heights = [96, 25, 83, 96, 33, 83, 24, 25], then the output will be 52.2 because the unique elements are [96, 25, 83, 33, 24], so sum is 96 + 25 + 83 + 33 + 24 = 261, average is 261/5 = 52.2. Algorithm To solve this problem, we will follow these steps ? h_set := a set from heights to ...
Read MoreProgram to find only even indexed elements from list in Python
In Python, we can extract elements at specific positions from a list. To find only even indexed elements (elements at positions 0, 2, 4, etc.), we can use list slicing techniques. So, if the input is like nums = [5, 7, 6, 4, 6, 9, 3, 6, 2], then the output will be [5, 6, 6, 3, 2] (elements at indices 0, 2, 4, 6, 8). Understanding Even vs Odd Indices Let's first clarify the index positions in our example list ? nums = [5, 7, 6, 4, 6, 9, 3, 6, 2] # ...
Read MorePython program to convert complex number to polar coordinate values
Converting a complex number to polar coordinates involves finding the magnitude (radius) and phase angle. For a complex number x + yj, the radius is sqrt(x² + y²) and the angle is measured counter-clockwise from the positive x-axis. Python's cmath module provides built-in functions: abs() for magnitude and phase() for the angle in radians. Syntax import cmath magnitude = abs(complex_number) angle = cmath.phase(complex_number) Example Let's convert the complex number 2+5j to polar coordinates ? import cmath def convert_to_polar(c): return (abs(c), cmath.phase(c)) c = 2+5j ...
Read MorePython program to get all permutations of size r of a string
Python's itertools.permutations() function generates all permutations of a specified length from a string. A permutation is an arrangement of elements where order matters. Syntax itertools.permutations(iterable, r) Parameters: iterable − The input string or sequence r − Length of each permutation (optional, defaults to full length) Example Let's generate all permutations of size 3 from the string "HELLO" ? from itertools import permutations def solve(s, r): vals = list(permutations(s, r)) result = [] for x in vals: ...
Read MorePHP – Return an array of all supported encodings with mb_list_encodings()
Looking at this article, I notice there's a topic mismatch - it's about PHP but the instructions are for Python articles. However, I'll improve the PHP article following the general improvement guidelines. The mb_list_encodings() function in PHP returns an array of all supported character encodings available in the multibyte string extension. This function is part of PHP's mbstring extension and is available in PHP 5.0.0 and higher versions. Syntax array mb_list_encodings() Parameters The mb_list_encodings() function takes no parameters. Return Value This function returns a numerically indexed array containing the names of ...
Read MorePython program to find how much money will be earned by selling shoes
Suppose in a shoe shop there are n different shoes with different sizes present in an array called shoes and another list of pairs for m customers called demand is given, where demand[i] contains (shoe_size, money). A customer with demand i wants a shoe of size shoe_size and can pay the given amount of money. We need to find how much money the shopkeeper can earn by selling these shoes. Example If the input is shoes = [2, 3, 4, 5, 6, 8, 7, 6, 5, 18] and demand = [(6, 55), (6, 45), (6, 55), (4, 40), ...
Read MorePython program to find Cartesian product of two lists
The Cartesian product of two lists creates all possible ordered pairs by combining each element from the first list with every element from the second list. Python provides multiple approaches to find the Cartesian product using itertools.product(), nested loops, or list comprehensions. Problem Understanding If we have two lists like [a, b] and [c, d], the Cartesian product will be [(a, c), (a, d), (b, c), (b, d)]. For input lists l1 = [1, 5, 6] and l2 = [1, 2, 9], the output should be all combinations of elements from both lists. Using itertools.product() The ...
Read MorePython program to capitalize each word\'s first letter
Let's understand the problem statement: we need to convert a given string to a title case, which involves capitalizing the first letter of each word while converting the remaining letters to lowercase. The following are the various ways to capitalize each word's first letter in a string ? Using title() method Using capitalize() method Using upper() method Importing string module Importing regex module Capitalizing a String in a File Using the title() ...
Read MorePython program to print rangoli pattern using alphabets
A rangoli pattern is a diamond-shaped pattern that uses alphabets arranged symmetrically. Given a number n, we create an alphabet rangoli of size n where alphabets start from 'a' and go up to the nth letter of the alphabet. Understanding the Pattern For n = 5, the rangoli pattern looks like this: --------e-------- ------e-d-e------ ----e-d-c-d-e---- --e-d-c-b-c-d-e-- e-d-c-b-a-b-c-d-e --e-d-c-b-c-d-e-- ----e-d-c-d-e---- ------e-d-e------ --------e-------- The pattern has the following characteristics: Each row is symmetric with dashes for spacing The middle row contains all alphabets from 'a' to the nth letter Upper and lower halves mirror ...
Read MorePython program to print decimal octal hex and binary of first n numbers
Sometimes we need to display numbers in different formats: decimal, octal, hexadecimal, and binary. Python provides format specifiers to convert numbers into these representations with proper alignment. So, if the input is like n = 10, then the output will be ? 1 1 1 1 2 2 2 10 3 3 3 11 4 4 4 100 5 5 5 101 6 6 ...
Read More