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Articles by Hafeezul Kareem
Page 26 of 26
Latin Square in C++
The Latin square is a matrix that has a special pattern. Let's see different examples to examine the pattern.1 2 2 1 1 2 3 3 1 2 2 3 1 1 2 3 4 4 1 2 3 3 4 1 2 2 3 4 1 The Latin square that you get will be of different size as you notice in the above examples. But, if you carefully observe the above matrices' pattern, you will find out that the last number of the previous row comes as the first element of the next row.That's the pattern ...
Read MoreDivisibility by 64 with removal of bits allowed in C++ Program
In this tutorial, we are going to write a program that checks whether the given binary number is divisible by 64 or not.We have given a binary number and we can remove the bits to make it divisible by 64. After removing the bits, if the number is divisible by 64, then print Yes else No.The method that we are going to use is very simple. Let's see the steps to solve the problem.Initialize the binary number in string format.Iterate over the given binary number.Count the number of zeros.If the binary number contains more than or equal to 6 and ...
Read MoreDistributing all balls without repetition in C++ Program
In this tutorial, we are going to learn how to distribute n balls for k students without hurting anyone.The idea is simple, we have n balls in different colors that need to be distributed to the students. We don't have to give more than one ball of the same color to any student. If it is possible for a student to get more than one ball of the same color, then distribution should not happen.Let's see an example.Inputn = 10 k = 5 ballsColors = "rrrgbrbgbr"OutputYesNo color is more than the number of students (k). So, no student will get ...
Read MoreDensity of Binary Tree in One Traversal in C++ Program
In this tutorial, we are going to learn how to find the density of the binary tree in a single traversal.The density of the binary tree is obtained by dividing the size of the tree by the height of the tree.The size of the binary tree is the total number of nodes present in the given binary tree.The height of the binary tree is the max depth of the leaf node from the root node.Let's see the steps to solve the problem.Initialize the binary tree dummy data.Find the size and height of the tree.Recursively count the height of the tree.Return ...
Read MoreFirst non-repeating character using one traversal of string in C++
In this tutorial, we are going to learn how to find the first non-repeating character in the given string. Let's see an example.Input −tutorialspointOutput −uLet's see the steps to solve the problem.Initialize the string.Initialize a map char and array to store the frequency of the characters in the string.Iterate over the string.Find the frequency of each character and store them in the map.Store the index of the character as well.Iterate over the character frequencies in the map.Print the first character with the frequency 1.ExampleLet's see the code.#include #include using namespace std; void findDistinctCharacters(string random_string) { // initializing ...
Read MoreForm validation using Django
In this article, we are going to learn how to validate a form in django. Django comes with build-in validators for forms. We can use them in the tutorial to validate forms.You must familiar with the Django to follow along with this tutorial. If you are not familiar with Django, then this article is not for you.Set up the basic Django project with the following commands.mkdir form_validation cd form_validation python -m venv env (Activate environment based on your OS) pip install django===3.0 django-admin startproject form_validation . (Don't forget dot(.) at the end) python manage.py startapp ...
Read MoreAuto-complete feature using Trie
We have a Trie, and when a user enters a character, we have to show the matching string the Trie. This feature we call it as auto-completion. For example, if a Trie contains "xyzzzz, ""xyz, " "xxxyyxzzz" and when the user enter xy, then we have to show them xyzzzz, xyz, etc.., Steps to achieve the result.Search for the string using the standard Trie algorithm.If the string is not present, then return -1.If the string is present and is the end of a word in Trie, then print the string.If the matching string doesn't have any node, then return.Else print ...
Read MoreAdd the slug field inside Django Model
In this tutorial, we are going to learn about the SlugField in Django.SlugFieldSlugField is a way to generate a URL using the data which we already have. You can generate URL using your title of the post or page. Let's see one detailed example.Let's say we have an article with name This is from Tutorialspoint with id = 5. Then we can have URL as www.tutorialspoint.com/posts/5/. It's difficult for the content writers to recognize the article with the previous URL. But, if you have a URL like www.tutorialspoint.com/this-isfrom-tutorialspoint, then it's easy for us to identify the piece. So, SlugField is ...
Read MoreChange data type of given numpy array in Python
We have a method called astype(data_type) to change the data type of a numpy array. If we have a numpy array of type float64, then we can change it to int32 by giving the data type to the astype() method of numpy array.We can check the type of numpy array using the dtype class. Let's check the data type of sample numpy array.Example# importing numpy library import numpy as np # creating numpy array array = np.array([1, 2, 3, 4, 5]) # printing the data type of the numpy array print(array.dtype)OutputIf you run the above code, you will get the ...
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