What is a palindrome? A palindrome is something that is read the same forward as it is backwards.
For example,
- racecar
- kayak
- my gym
- Was it a cat I saw?
- Step on no pets
- 878
- 123454321
- Fork and clone this repo
cd racecar
- Commit
- Push up to your master
- Make a PR to Turingschool-examples with your name as the title
During this hour, you will be challenged to review your raw ruby skills. Testing is not required.
Write a script in the palindrome.rb file that finds all numbers between 1 and 1000 that when reversed, and added to itself, create a numeric palindrome.
examples:
- 50, because 50 + 05 = 55 and 55 is the same forward and backward
- 47, because 47 + 74 = 121 and 121 is the same forward and backward
- 513, because 513 + 315 = 828 and 828 is the same forward and backward
To run the code that you write in the palindrome.rb file, run ruby palindrome.rb
.
Your return value should be similar to the following:
>> [1, 2, 3, 4, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 38, 40, 41, 42, 43, 44, 45, 47, 50, 51, 52, 53, 54, 56, 60, 61, 62, 63, 65, 70, 71, 72, 74, 80, 81, 83, 90, 92, 100, 101, 102, 103, 104, 105, 106, 107, 108, 110, 111, 112, 113, 114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126, 127, 128, 130, 131, 132, 133, 134, 135, 136, 137, 138, 140, 141, 142, 143, 144, 145, 146, 147, 148, 200, 201, 202, 203, 204, 205, 206, 207, 209, 210, 211, 212, 213, 214, 215, 216, 217, 220, 221, 222, 223, 224, 225, 226, 227, 230, 231, 232, 233, 234, 235, 236, 237, 240, 241, 242, 243, 244, 245, 246, 247, 300, 301, 302, 303, 304, 305, 306, 308, 310, 311, 312, 313, 314, 315, 316, 320, 321, 322, 323, 324, 325, 326, 330, 331, 332, 333, 334, 335, 336, 340, 341, 342, 343, 344, 345, 346, 400, 401, 402, 403, 404, 405, 407, 410, 411, 412, 413, 414, 415, 420, 421, 422, 423, 424, 425, 430, 431, 432, 433, 434, 435, 440, 441, 442, 443, 444, 445, 500, 501, 502, 503, 504, 506, 510, 511, 512, 513, 514, 520, 521, 522, 523, 524, 530, 531, 532, 533, 534, 540, 541, 542, 543, 544, 600, 601, 602, 603, 605, 610, 611, 612, 613, 620, 621, 622, 623, 630, 631, 632, 633, 640, 641, 642, 643, 700, 701, 702, 704, 710, 711, 712, 720, 721, 722, 730, 731, 732, 740, 741, 742, 800, 801, 803, 810, 811, 820, 821, 830, 831, 840, 841, 900, 902, 910, 920, 930, 940, 1000]