1.2 KiB
1.2 KiB
id | challengeType | title | forumTopicId |
---|---|---|---|
5900f4e01000cf542c50fff2 | 5 | Problem 371: Licence plates | 302033 |
Description
E.g. MIC-012 and HAN-988 is a win and RYU-500 and SET-500 too. (as long as he sees them in the same trip).
Find the expected number of plates he needs to see for a win. Give your answer rounded to 8 decimal places behind the decimal point.
Note: We assume that each licence plate seen is equally likely to have any three digit number on it.
Instructions
Tests
tests:
- text: <code>euler371()</code> should return 40.66368097.
testString: assert.strictEqual(euler371(), 40.66368097);
Challenge Seed
function euler371() {
// Good luck!
return true;
}
euler371();
Solution
// solution required