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In this article, the task is to print the positive numbers from a list of integers. Here, in this Python article, this task is done using the different methods in 4 different examples. Then these positive numbers are printed. In example 1, the positive numbers are picked and separated into another list. In the example 2, all the elements that are not positive are removed. In example 3, the sorted list is split up to zero and only positives are retained. In example 4, filter is used to select the positive numbers. Example 1 - Select only the positive numbers ... Read More
In this tutorial, we are going to learn how we can check whether the number is even or odd. The number that can be divisible by 2 is an even number and the number that is not divisible by two is an odd number. This tutorial includes three different ways to achieve this Moulous Operator − In the first method, we are using the modulus (%) operator. This operator is used to find the remainder of two numbers. In our case, we will do the modulus of the number with 2 and if it returns 0 then ... Read More
In this tutorial, we are going to learn how we can install pip in a Docker container using a Dockerfile. This tutorial will cover the creation of the Dockerfile and then we will see the docker command to build a docker image from the Dockerfile, and in last we will see the docker command to run a container based on that image and see whether PIP is installed properly or not. Prerequisites There are some prerequisites to creating and building the Dockerfile as mentioned below. The stable version of Docker should be installed. Create a file in any folder ... Read More
Many times we see two files that look similar but had certain differences. If the files are big or have lots of content, searching for that difference or finding the uniqueness in that file manually is not easy. However, this problem of finding the unique lines in two text files can be done easily using Python programs. In this article, using three different examples, three different ways of finding the unique lines in two text files are given. The text files used are a.txt and b.txt while in the end the result is stored in another txt file. For these ... Read More
Sometimes, we require starting index of a word and also the last index of that word. A sentence is made up of words that are separated by spaces. In this Python article, using two different examples, the two different ways of finding the beginning and ending indices of all words in a sentence or a given string, are given. In the first example, the process of simple iteration through all the characters of a string is followed while finding the spaces to mark the beginning of words. In example 2, a Natural Language Toolkit is used for the task of ... Read More
In Golang, like other programming languages, we can code the logic to sort an array that has 0’s, 1’s, and 2’s as elements. Sorting means assigning the data either in increasing order or in decreasing order. This is one of the famous questions on the array asked in interviews. There can be two approaches to achieve this that we are going to explore one by one. For example, we have an array 2, 1, 0, 0, 1, 2, and after sorting the array will look like 0, 0, 1, 1, 2, 2. Method 1 In this example, we are going ... Read More
A number is said to be an Armstrong number if the digits are taken individually and raised to the power of the total digits and then these subparts are added together and they give the number itself. Here, in this Python example, using two different examples, the method of finding the total sum of n-digit Armstrong numbers is given. In example 1, the method to calculate the sum of all the 3 digit Armstrong numbers is given. In example 2, the number of digits can be decided by the user at runtime. This program is tested using digit values 4 ... Read More
In programming, to search for anything from an array, linked List, or from any other data structures we have a few search algorithms, one of which is Linear search. In the linear search, we iterate over the data structure from starting and search for the element till the last index. The advantage of a linear search algorithm is that we can perform this search of both sorted and unsorted data. The disadvantage is that for sorted or unsorted both kinds of data it will take the same amount of time to find an element. For example, we have an array ... Read More
Sometimes the task is to separate the negative and positive numbers or to separate the odd numbers and even numbers from a list of integers. Here, in this Python article, both these tasks are done. First negative numbers are separated into another list. Then the positive odd and positive even numbers are separated into separate lists. To calculate the sum, the numbers from these negative number lists, positive odd number lists, and positive even number lists are taken to calculate sums separately. In the two different examples, the main list of integers is formed. In example 1, the negative and ... Read More
A multiple of a number n is also divisible by the same number n. If a number M is a multiple of a number n, then if we divide M by n, its remainder must be zero. Also to create the multiples of number n within a given range, we can add n multiple times and check that the resulting number is within the given range or not. Another way to make multiples of a given number n, within a given range, is to find the first multiple in the given range for n and then to find the value ... Read More