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Function overloading is a popular concept in object-oriented programming where functions can have the same name but different parameters. This enables the developer to write functions that can perform different operations based on the input parameters. However, Python doesn't support function overloading as traditionally seen in other object-oriented languages such as Java or C++. Fortunately, the singledispatch function from the functools module provides a solution for Python developers to implement function overloading. Syntax The functools module is part of the Python standard library and doesn't require any installation. To use the singledispatch function, import it from the functools module − ... Read More
Welcome to this blog post where we will be discussing the implementation of a fun game called Flip! using Python. Flip! is a game that involves flipping over tiles on a 4x4 grid to reveal their color. The objective of the game is to flip over all the tiles while making as few moves as possible. In this post, we will go through the implementation of the game using Python and explain the different components of the code. Syntax The following packages are used in this code − itertools − This package provides functions to iterate over collections in ... Read More
You are given two strings A and B, the task is to convert from string A to string B, if possible. You are allowed to perform only one operation that is to put any character from A and insert it at front. Check if it’s possible to convert the string. If yes, then output minimum number of operations required for transformation. Input output Scenarios Assume we have two strings A and B with values "ABD" and "BAD" respectively the operation need to take to convert the first string to the latter is 1 which is swapping the first two characters. ... Read More
One of the biggest online markets in India is Flipkart, where shoppers can buy everything from gadgets to apparel. Any commercial service must examine the tone of the evaluations in order to enhance their services as a result of the growing number of consumers and their feedback. To detect whether a text exhibits a positive, negative, or neutral attitude, Sentiment Analysis is a Natural Language Processing approach which we will be examining using Python to conduct sentiment analysis on product reviews in this technical blog. Installation and Syntax To perform sentiment analysis on Flipkart reviews, we will need to install ... Read More
Data Definition Language(DDL) is used for describing data and its relationship in a database. It is also used to define the database schema. The commands only affect the database structure and not the data. The main DDL commands are create, alter, drop and truncate. Create Statement It is used to create a database or table. While creating the table, we specify table_name, column_name followed by data_types(int, float, varchar, etc) and constraints(primary key, not null, etc) Syntax CREATE TABLE table_name ( column1 datatype, column2 datatype, ..... ) Example In this ... Read More
The task is to generate a string that consists of characters ‘a’ and ‘b’ which satisfies the condition mentioned below: str must have a length of A+B. The character 'a' must appear A times and the character 'b' must appear B times within the string. The sub−strings "aaa" and "bbb" should not appear in str. After generating the string, it should be printed. One possible solution is to first generate a string with all 'a's and 'b's, with 'a' occurring A times and 'b' occurring B times. Then, we can shuffle the string randomly until we find a ... Read More
FCFS CPU Scheduling (First Come, First Serve) is a fundamental CPU scheduling mechanism that executes programs in the order they are added to the ready queue. In other words, the first process to come will be carried out first, and so on. Since it uses a non−preemptive scheduling technique, a process that has been allocated to the CPU will keep running until it is finished or enters a waiting state. Scenario 1 Let's take a look at an example to understand FCFS CPU scheduling in more detail. Suppose we have three processes with the following arrival times and burst times: ... Read More
DCL(Data Control Language) work is to deal with sql commands that are used to permit a user to access, modify and work on a database. it is used to access stored data. It gives access, revoke access and change the permission to the owner of the database as per the requirement. It helps in how sql can use a user authority to modify or retrieve data and protect against unauthorised access. It complements data manipulation language(DML) and data definition language(DDL). It is the simplest among the three command It is basically used for enforcing data security. DCL Commands ... Read More
Data replication means copying the data at multiple locations to improve the availability of data. It is used to remove the inconsistency between the same data which results in a distributed database so that users can do their own task without interrupting the work of other users. There are various types of Data Replication in DBMS as follow − Types of Data Replication Transactional Replication It makes a full copy of the database along with the changed data. Transactional consistency is guaranteed because the order of data is the same when copied from publisher to subscriber database. It is ... Read More
Operating system has a concept known as the optimal page size that is affected by a number of variables, such as the system architecture, the amount of physical memory at hand, and the workload of the running applications. Steps/ Approach The following steps can be used to find the ideal page size: Step 1: Establish the system's design:Different CPU designs support varied page sizes. For instance, x86 CPUs typically offer 4KB page sizes, whereas ARM CPUs support 4KB, 16KB, or 64KB page sizes. Step 2: Calculate the physical memory capacity:The ideal page size depends on the physical memory capacity. Larger ... Read More