Parse and evaluate simple math word problems returning the answer as an integer.
Problems with no operations simply evaluate to the number given.
What is 5?
Evaluates to 5.
Add two numbers together.
What is 5 plus 13?
Evaluates to 18.
Handle large numbers and negative numbers.
Now, perform the other three operations.
What is 7 minus 5?
2
What is 6 multiplied by 4?
24
What is 25 divided by 5?
5
Handle a set of operations, in sequence.
Since these are verbal word problems, evaluate the expression from left-to-right, ignoring the typical order of operations.
What is 5 plus 13 plus 6?
24
What is 3 plus 2 multiplied by 3?
15 (i.e. not 9)
The parser should reject:
- Unsupported operations ("What is 52 cubed?")
- Non-math questions ("Who is the President of the United States")
- Word problems with invalid syntax ("What is 1 plus plus 2?")
If you'd like, handle exponentials.
What is 2 raised to the 5th power?
32
- To parse the text, you could try to use the Sprache library. You can also find a good tutorial here.
To run the tests, run the command dotnet test from within the exercise directory.
Initially, only the first test will be enabled. This is to encourage you to solve the exercise one step at a time.
Once you get the first test passing, remove the Skip property from the next test and work on getting that test passing.
Once none of the tests are skipped and they are all passing, you can submit your solution
using exercism submit Wordy.cs
For more detailed information about the C# track, including how to get help if you're having trouble, please visit the exercism.io C# language page.
Inspired by one of the generated questions in the Extreme Startup game. https://github.com/rchatley/extreme_startup