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Merge pull request #568 from Abhay182005dat/main
Added solutions for the LC problems from 2880-2882
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‎dsa-solutions/lc-solutions/2500 - 3000/2880 - Select Data

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---
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id : 2880-select-data
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title : Select Data from a DataFrame
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sidebar_label: 2880 Select Data Leetcode
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tags:
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- LeetCode
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- Python
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- Data Science
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description: "This is a solution to the Select Data question from the Leetcode 2880 question"
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---
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## Problem Description
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Write a solution to select the name and age of the student with student_id = 101.
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##Examples
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Example 1:
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Input:
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+------------+---------+-----+
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| student_id | name | age |
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+------------+---------+-----+
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| 101 | Ulysses | 13 |
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| 53 | William | 10 |
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| 128 | Henry | 6 |
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| 3 | Henry | 11 |
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+------------+---------+-----+
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Output:
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+---------+-----+
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| name | age |
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+---------+-----+
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| Ulysses | 13 |
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+---------+-----+
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##Intuition
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I will say as this is a Data Science Problem the solution is also straightforward . Hope it helps :)
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.
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### Solution Code
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<Tabs>
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<TabItem value="Python" label="" default>
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<SolutionAuthor name="@Abhay:)"/>
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```Python
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import pandas as pd
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def selectData(students: pd.DataFrame) -> pd.DataFrame:
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return students.loc[students['student_id'] == 101, ["name", "age"]]
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```
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</TabItem>
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</Tabs>
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## References
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- **Leetcode Problem :** [Select Data](https://leetcode.com/problems/select-data/)

‎dsa-solutions/lc-solutions/2500 - 3000/2881 - Create a New Column

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---
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id : Create-a-New-Column
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title : Create a New column
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sidebar_label: 2881 Create a new column Leetcode
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tags:
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- LeetCode
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- Python
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- Data Science
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description: "This is a solution for the leetcode 2881 problem which is to create a new column.This problem uses pandas which is a python library for solving"
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---
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## Problem Description
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A company plans to provide its employees with a bonus.
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Write a solution to create a new column name bonus that contains the doubled values of the salary column.
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##Examples
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Input:
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DataFrame employees
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+---------+--------+
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| name | salary |
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+---------+--------+
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| Piper | 4548 |
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| Grace | 28150 |
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| Georgia | 1103 |
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| Willow | 6593 |
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| Finn | 74576 |
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| Thomas | 24433 |
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+---------+--------+
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Output:
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+---------+--------+--------+
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| name | salary | bonus |
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+---------+--------+--------+
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| Piper | 4548 | 9096 |
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| Grace | 28150 | 56300 |
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| Georgia | 1103 | 2206 |
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| Willow | 6593 | 13186 |
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| Finn | 74576 | 149152 |
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| Thomas | 24433 | 48866 |
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+---------+--------+--------+
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Explanation:
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A new column bonus is created by doubling the value in the column salary.
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##Intuition
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I will say as this is a Data Science Problem the solution is also straightforward . Hope it helps :)
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.
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### Solution Code
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<Tabs>
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<TabItem value="Python" label="" default>
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<SolutionAuthor name="@Abhay:)"/>
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```Python
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import pandas as pd
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def createBonusColumn(employees: pd.DataFrame) -> pd.DataFrame:
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employees['bonus'] = employees['salary']*2
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return employees
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```
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</TabItem>
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</Tabs>
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## References
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- **Leetcode Problem :** [Create a new column](https://leetcode.com/problems/create-a-new-column/)

‎dsa-solutions/lc-solutions/2500 - 3000/2882 - Drop Duplicate Rows

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---
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id : Drop-Duplicate-Rows
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title : Drop Duplicate Rows
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sidebar_label: 2882 Drop Duplicate Rows
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tags:
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- LeetCode
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- Python
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- Data Science
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description: "This is a solution for the Leetcode problem 2882 which asks to drop duplicate rows and keep only the first occurence.
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This Problem is solved with the help of python library Pandas. "
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---
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## Problem Description
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There are some duplicate rows in the DataFrame based on the email column.
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Write a solution to remove these duplicate rows and keep only the first occurrence.
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The result format is in the following example.
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##Examples
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Example 1:
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Input:
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+-------------+---------+---------------------+
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| customer_id | name | email |
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+-------------+---------+---------------------+
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| 1 | Ella | emily@example.com |
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| 2 | David | michael@example.com |
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| 3 | Zachary | sarah@example.com |
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| 4 | Alice | john@example.com |
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| 5 | Finn | john@example.com |
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| 6 | Violet | alice@example.com |
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+-------------+---------+---------------------+
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Output:
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+-------------+---------+---------------------+
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| customer_id | name | email |
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+-------------+---------+---------------------+
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| 1 | Ella | emily@example.com |
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| 2 | David | michael@example.com |
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| 3 | Zachary | sarah@example.com |
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| 4 | Alice | john@example.com |
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| 6 | Violet | alice@example.com |
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+-------------+---------+---------------------+
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Explanation:
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Alic (customer_id = 4) and Finn (customer_id = 5) both use john@example.com, so only the first occurrence of this email is retained.
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##Intuition
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I will say as this is a Data Science Problem the solution is also straightforward . Hope it helps :)
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.
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### Solution Code
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<Tabs>
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<TabItem value="Python" label="" default>
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<SolutionAuthor name="@Abhay:)"/>
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```Python
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import pandas as pd
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def dropDuplicateEmails(customers: pd.DataFrame) -> pd.DataFrame:
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customers.drop_duplicates(subset='email',keep='first',inplace = True)
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return customers
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```
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</TabItem>
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</Tabs>
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## References
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- **Leetcode Problem :** [Drop Duplicate Rows](https://leetcode.com/problems/drop-duplicate-rows/description/)

‎web-dev/html/Flex-Box/Flex-Box Properties

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---
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id: Flexbox
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title: Flexbox
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sidebar_label: Flexbox
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sidebar_position: 2
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tags: [html, CSS, Flexbox]
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---
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# Flexbox Layout in CSS
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Flexbox, short for Flexible Box, is a layout model in CSS that allows you to design complex layouts more efficiently and with less code compared
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to traditional methods like floats or positioning.
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## Introduction to Flexbox
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Flexbox introduces a new way to layout, align, and distribute space among items in a container, even when their size is unknown or dynamic.
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It's particularly useful for creating responsive designs and aligning elements within a container in numerous ways.
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## Basic Concepts
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Flexbox revolves around two main components: the flex container and flex items.
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### Flex Container
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The parent element that holds flex items is called the flex container. To create a flex container, you set the CSS `display` property to `flex` or `inline-flex`.
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```css
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.container {
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display: flex;
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}
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```
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---
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## Flex Items
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The children of a flex container are called flex items. These items can dynamically adjust their width, height, and orderto fill theavailable space within the
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flex container.
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```html
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<div class="container">
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<div class="item">Item 1</div>
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<div class="item">Item 2</div>
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<div class="item">Item 3</div>
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</div>
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```
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## Main Axis and Cross Axis
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Flexbox operates along two axes: the main axis and the cross axis. The main axis is defined by the flex-direction property and determines the
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direction in which flex items are laid out, while the cross axis is perpendicular to it.
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## Properties
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Flexbox provides several properties to control the layout and behavior of flex containers and items.
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## Common Flex Container Properties
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'display': Specifies the type of box used for a flex container.
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'flex-direction': Establishes the main axis direction.
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'justify-content': Aligns flex items along the main axis.
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'align-items': Aligns flex items along the cross axis.
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'flex-wrap': Specifies whether flex items should wrap or not.
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## Common Flex Item Properties
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'order': Specifies the order of a flex item relative to other flex items.
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'flex-grow': Specifies how a flex item grows relative to other flex items.
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'flex-shrink': Specifies how a flex item shrinks relative to other flex items.
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'flex-basis': Specifies the initial size of a flex item.
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'align-self': Allows the default alignment to be overridden for individual flex items.
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---
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Flexbox Example</title>
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<style>
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.container {
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display: flex;
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justify-content: space-between;
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align-items: center;
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}
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.item {
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flex: 1;
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padding: 10px;
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text-align: center;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="item" style="background-color: #FF5733;">Item 1</div>
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<div class="item" style="background-color: #33FF99;">Item 2</div>
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<div class="item" style="background-color: #3366FF;">Item 3</div>
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</div>
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</body>
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</html>
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```
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## Conclusion
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Flexbox simplifies the process of creating layouts that adapt to different screen sizes and devices. By mastering Flexbox, you can create more responsive and dynamic web designs with less effort.

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