Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Learn challenge 1 | test challenge
test daily challenge

bookchallenge 1

Task

Swipe to start coding

Implement a basic calculator that can evaluate a mathematical expression provided as a string input. The calculator should support the following operations: addition (+), subtraction (-), multiplication (*), division (/), and parentheses for grouping. The calculator should handle operator precedence correctly and be able to process expressions that include whitespace.

Examples

Input:

3 + 5 * 2 ^ 2

Output

23

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 1
single

single

Ask AI

expand

Ask AI

ChatGPT

Ask anything or try one of the suggested questions to begin our chat

Suggested prompts:

Summarize this chapter

Explain the code in file

Explain why file doesn't solve the task

close

Awesome!

Completion rate improved to 50

bookchallenge 1

Swipe to show menu

Task

Swipe to start coding

Implement a basic calculator that can evaluate a mathematical expression provided as a string input. The calculator should support the following operations: addition (+), subtraction (-), multiplication (*), division (/), and parentheses for grouping. The calculator should handle operator precedence correctly and be able to process expressions that include whitespace.

Examples

Input:

3 + 5 * 2 ^ 2

Output

23

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 50
SectionΒ 1. ChapterΒ 1
single

single

some-alt