• Home
• com.github.javadev
• leetcode-in-java
• 1.37
• source code
• readme.md

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

g2801_2900.s2884_modify_columns.readme.md Maven / Gradle / Ivy

2884\. Modify Columns

Easy

DataFrame `employees` 

    +-------------+--------+ 
    | Column Name | Type   | 
    +-------------+--------+ 
    | name        | object | 
    | salary      | int    | 
    +-------------+--------+

A company intends to give its employees a pay rise.

Write a solution to **modify** the `salary` column by multiplying each salary by 2.

The result format is in the following example.

**Example 1:**

**Input:** DataFrame employees 

    +---------+--------+ 
    | name    | salary | 
    +---------+--------+ 
    | Jack    | 19666  | 
    | Piper   | 74754  | 
    | Mia     | 62509  | 
    | Ulysses | 54866  | 
    +---------+--------+

**Output:** 

    +---------+--------+ 
    | name    | salary | 
    +---------+--------+ 
    | Jack    | 39332  | 
    | Piper   | 149508 | 
    | Mia     | 125018 | 
    | Ulysses | 109732 | 
    +---------+--------+

**Explanation:** Every salary has been doubled.