Farjanul Nayem126

There are several ways to sell your Python code, depending on what kind of code it is and what your goals are. Here are a few options: Sell your code as a product: If you have written a piece of code...

I want earn from python source code or services. How can it possible?

We will use the ( \d ) metacharacter, we will discuss regex metacharacters in detail in the later section of this article. Let's take a simple example of a regular expression to check if a string contains...

The \d  is a special sequence that matches any digit between 0 to 9. Give here the example of sample code, how to use the Python re module to write the regular expression.

The built-in json module of Python can only handle Python primitives types that have a direct JSON equivalent. i.e., The fundamental problem is that the JSON encoder json.dump() and json.dumps() only...

You are here because when you try to encode a custom Python object into a JSON format, you received a TypeError: Object of type SampleClass is not JSON serializable.

You can also use the command to give permissions to the selected folder and its files. Method 1: [apcode language="bash"] sudo chmod -R a+rwx /path/to/folder // For the hole directory sudo chmod -R...

I want to give the user write privileges on the folder or file.

Linux Set User Password Open the Linux terminal application. Type following passwd command command to change your own password: [apcode language="bash"] passwd [/apcode] Sample output: [apcode...

How do I set or change Linux system password for any user account? How can I change user password on Linux operating system using the command-line options?

The diagram below shows a typical microservice architecture. Load Balancer: This distributes incoming traffic across multiple backend services. CDN (Content Delivery Network): CDN is a group of geographically...

1). What are the drawbacks of the microservice architecture? 2). Have you seen a monolithic system be transformed into microservice architecture? How long does it take? Please explain the microservice...

O(nm) runtime, O(1) space – Brute force: Difficulty: Easy, Frequency: High Returns the index of the first occurrence of needle in haystack, or –1 if needle is not part of haystack....

Implement strStr(). Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Clarification: What should...

O(n) runtime, O(1) space: The idea is simple, have two pointers – one at the head while the other one at the tail. Move them towards each other until they meet while skipping non-alphanumeric characters....

Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a palindrome....

add – O(n) runtime, find – O(1) runtime, O(n2) space – Store pair sums in hash table: We could store all possible pair sums into a hash table. The extra space needed is in the order of O(n2). You...

Design and implement a TwoSum class. It should support the following operations: add and find. add(input) – Add the number input to an internal data structure. find(value) – Find if there exists any...

Of course we could still apply the [Hash table] approach, but it costs us O(n) extra space, plus it does not make use of the fact that the input is already sorted. O(n log n) runtime, O(1) space – Binary...

Similar to Question [1. Two Sum], except that the input array is already sorted in ascending order. You are given two non-empty linked lists representing two non-negative integers. The digits are stored...