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Programming Articles
Page 283 of 2547
Python program to check whether we can pile up cubes or not
Suppose we have an array nums containing sizes of n different cubes placed horizontally. We need to make a vertical pile of cubes following this rule: If the ith cube is on top of the jth cube, then the side length of the jth cube must be greater than or equal to the side length of the ith cube. When making the vertical pile, we can only take cubes from the left side or right side, but not from the middle. We need to check whether we can pile them up successfully or not. Problem ...
Read MoreProgram to compute gcd of two numbers recursively in Python
Finding the Greatest Common Divisor (GCD) of two numbers is a fundamental mathematical operation. The Euclidean algorithm provides an efficient recursive approach by repeatedly applying the principle that GCD(a, b) = GCD(b, a mod b). So, if the input is like a = 25, b = 45, then the output will be 5. Algorithm Steps To solve this recursively, we will follow these steps − Define a function gcd(). This will take a, b if a is same as b, then ...
Read MorePython program to find top three mostly occurred letters from company name
Sometimes we need to find the most frequently occurring characters in a company name. This program identifies the top three most common letters and displays them with their frequencies following specific sorting rules. Problem Requirements Given a company name as a string, we need to find the three most common characters by following these rules ? Pick the most frequent three letters Sort them in descending order by frequency If frequencies are equal, sort alphabetically For example, if the input is s = "TUTORIALSPOINT", the output should be [[3, 'T'], [2, 'I'], [2, 'O']]. ...
Read MoreProgram to find area of a polygon in Python
Suppose we have a list of ordered points that represents a simple polygon on a 2D plane. We need to find the area of this polygon using the Shoelace formula (also known as the surveyor's formula). So, if the input is like points = [(0, 0), (0, 5), (3, 5), (3, 0)], then the output will be 15. ...
Read MorePython program to count pairs for consecutive elements
When working with numeric strings, you often need to count how many times each digit appears consecutively. Python's itertools.groupby() function is perfect for this task as it groups consecutive identical elements together. For example, if the input is s = "11522226551", the output should be [(1, 2), (5, 1), (2, 4), (6, 1), (5, 2), (1, 1)] because digit 1 appears twice consecutively at the beginning, then single 5, then four 2s, and so on. Algorithm To solve this problem, we will follow these steps ? Use groupby() function to group consecutive identical digits Create ...
Read MorePython program to count distinct words and count frequency of them
When working with text data, we often need to count how many distinct words appear and track their frequencies. Python provides several approaches to solve this problem efficiently. In this example, we have a list of words where some words may appear multiple times. We need to return the count of distinct words and their frequencies in order of first appearance. Problem Example Given the input: words = ["Book", "Sound", "Language", "Computer", "Book", "Language"] The expected output is (4, '2 1 2 1') because: There are 4 distinct words ...
Read MoreProgram to check whether domain and range are forming function or not in Python
Suppose we have a list of data x that represents a domain and a list of data y (same size as x) that represents a range. We need to check whether the mapping x → y forms a valid function. In mathematics, a function is a relation where each input (domain element) maps to exactly one output (range element). So, if the input is like x = [1, 3, 2, 6, 5] y = [1, 9, 4, 36, 25], then the output will be True, because each element in x maps to exactly one corresponding element in y (in ...
Read MorePython program to find happiness by checking participation of elements into sets
Suppose we have an array nums with n different integers. We also have two disjoint sets A and B. We have one happiness parameter which is set to 0 initially. We go through each integer i in nums. If i is in A then add happiness by 1 and if i is in B decrease it by 1. We have to finally find the final happiness value. So, if the input is like nums = [1, 2, 5, 8, 6, 3], A = {5, 8, 9, 7, 3}, B = {2, 4, 12, 15}, then the output will be ...
Read MoreProgram to find ex in an efficient way in Python
The mathematical constant e raised to the power x (ex) can be calculated efficiently using the Taylor series expansion without library functions. The formula for ex is: ex = 1 + x + x²/2! + x³/3! + x⁴/4! + ... For example, if x = 5, then e5 ≈ 148.4131 because e5 = 1 + 5 + (5²/2!) + (5³/3!) + ... = 148.4131... Algorithm To solve this efficiently, we follow these steps ? Initialize factorial = 1, result = 1, and numerator = x Set n = 20 (number of terms for precision) ...
Read MorePython program to find angle between mid-point and base of a right angled triangle
When we have a right-angled triangle with sides AB and BC, we can find the angle between the midpoint M of the hypotenuse AC and the base BC using trigonometry. This angle can be calculated using the arctangent function. A B C M θ ...
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