1.1 KiB
1.1 KiB
id | challengeType | title | videoUrl | localeTitle |
---|---|---|---|---|
5900f3fd1000cf542c50ff10 | 5 | Problem 145: How many reversible numbers are there below one-billion? | 问题145:有多少可逆数字低于十亿? |
Description
有一千个可逆数字低于一千。
有多少可逆数字低于十亿(109)?
Instructions
Tests
tests:
- text: <code>euler145()</code>应该返回608720。
testString: 'assert.strictEqual(euler145(), 608720, "<code>euler145()</code> should return 608720.");'
Challenge Seed
function euler145() {
// Good luck!
return true;
}
euler145();
Solution
// solution required