feat(2023): add solution for challenge #10

2023/challenge-10/README.md

@@ -0,0 +1,35 @@
+# Challenge #10: Create your owm Christmas tree
+
+What an idea Sam Elfman has had! He wants to offer a service that creates a **customized Christmas tree** 🎄 in a matter of seconds.
+
+To create it, we are given a **string to form the tree** and a **number that indicates its height.**
+
+Each character of the string represents an ornament of the tree, and we use them **cyclically** until we reach the indicated height. **At least, they will always pass us one.**
+
+We must return a multiline **string** with the Christmas tree made with the ornaments, the indicated height **plus a final line with the trunk formed by the character `|`** in the center and, finally, a newline `\n`.
+
+For example, if we receive the string `"123"` and the number `4` as height, we would have to build this tree:
+
+```js
+    1
+   2 3
+  1 2 3
+1 2 3 1 2
+    |
+```
+
+If we receive the string `*@o` and the number `3`, the tree we should return is:
+
+```js
+    1
+   2 3
+  1 2 3
+1 2 3 1 2
+    |
+```
+
+Note:
+
+- **The tree should always be centered, for that reason add blank spaces to the left of each line.**
+- **Create spaces only to the left of each line of the tree. Do not leave blank spaces to the right.**
+- **The ornaments have a white space between them for separation.**

2023/challenge-10/challenge-10.test.ts

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+import { describe } from 'vitest'
+import { createChristmasTree } from './challenge-10'
+
+const TEST_CASES: TestCases<[string, number], string> = [
+  { args: ['x', 3], expected: `  x\n x x\nx x x\n  |\n` },
+  { args: ['xo', 4], expected: `   x\n  o x\n o x o\nx o x o\n   |\n` },
+  {
+    args: ['123', 5],
+    expected: `    1\n   2 3\n  1 2 3\n 1 2 3 1\n2 3 1 2 3\n    |\n`,
+  },
+  { args: ['*@o', 3], expected: `  *\n @ o\n* @ o\n  |\n` },
+]
+
+describe('Challenge #10: Create your owm Christmas tree', () => {
+  buildChallengeTestCases({
+    cases: TEST_CASES,
+    spreadFn: createChristmasTree,
+  })
+})

2023/challenge-10/challenge-10.ts

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+export function createChristmasTree(ornaments: string, height: number) {
+  let result = ''
+  const spaces = ' '.repeat(height - 1)
+
+  const ornamentsArray = [...ornaments.repeat(height)].join(' ')
+  let currentPosition = 0
+
+  for (const index of new Array(height).keys()) {
+    const length = index + 1
+    const total = currentPosition + length
+
+    result +=
+      spaces.slice(index) +
+      ornamentsArray.slice(currentPosition * 2, total * 2 - 1) +
+      '\n'
+
+    currentPosition = total % ornaments.length
+  }
+
+  return result + spaces + '|\n'
+}

README.md

@@ -87,33 +87,33 @@ This repository contains the solutions to the challenges proposed by [@midudev](
 
 ### 🕹️ Challenges
 
-|  #  |          Challenge          | Difficulty[^1] |                  Description                   |                 Solution                  |
-| :-: | :-------------------------: | :------------: | :--------------------------------------------: | :---------------------------------------: |
-| 01  |    First gift repeated!     |       🟢       | [Show](https://adventjs.dev/challenges/2023/1) | [Go](./2023/challenge-01/challenge-01.ts) |
-| 02  |    We start the factory     |       🟢       | [Show](https://adventjs.dev/challenges/2023/2) | [Go](./2023/challenge-02/challenge-02.ts) |
-| 03  |       The naughty elf       |       🟢       | [Show](https://adventjs.dev/challenges/2023/3) | [Go](./2023/challenge-03/challenge-03.ts) |
-| 04  | Turn the parentheses around |       🟠       | [Show](https://adventjs.dev/challenges/2023/4) | [Go](./2023/challenge-04/challenge-04.ts) |
-| 05  |     Santa's CyberTruck      |       🟠       | [Show](https://adventjs.dev/challenges/2023/5) | [Go](./2023/challenge-05/challenge-05.ts) |
-| 06  |    The reindeer on trial    |       🟢       | [Show](https://adventjs.dev/challenges/2023/6) | [Go](./2023/challenge-06/challenge-06.ts) |
-| 07  |        The 3D boxes         |       🟢       | [Show](https://adventjs.dev/challenges/2023/7) | [Go](./2023/challenge-07/challenge-07.ts) |
-| 08  |    Sorting the warehouse    |       🟠       | [Show](https://adventjs.dev/challenges/2023/8) | [Go](./2023/challenge-08/challenge-08.ts) |
-| 09  |      Switch the light       |       🟢       | [Show](https://adventjs.dev/challenges/2023/9) | [Go](./2023/challenge-09/challenge-09.ts) |
-| 10  |             --              |       --       |                       --                       |                    --                     |
-| 11  |             --              |       --       |                       --                       |                    --                     |
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+|  #  |           Challenge            | Difficulty[^1] |                   Description                   |                 Solution                  |
+| :-: | :----------------------------: | :------------: | :---------------------------------------------: | :---------------------------------------: |
+| 01  |      First gift repeated!      |       🟢       | [Show](https://adventjs.dev/challenges/2023/1)  | [Go](./2023/challenge-01/challenge-01.ts) |
+| 02  |      We start the factory      |       🟢       | [Show](https://adventjs.dev/challenges/2023/2)  | [Go](./2023/challenge-02/challenge-02.ts) |
+| 03  |        The naughty elf         |       🟢       | [Show](https://adventjs.dev/challenges/2023/3)  | [Go](./2023/challenge-03/challenge-03.ts) |
+| 04  |  Turn the parentheses around   |       🟠       | [Show](https://adventjs.dev/challenges/2023/4)  | [Go](./2023/challenge-04/challenge-04.ts) |
+| 05  |       Santa's CyberTruck       |       🟠       | [Show](https://adventjs.dev/challenges/2023/5)  | [Go](./2023/challenge-05/challenge-05.ts) |
+| 06  |     The reindeer on trial      |       🟢       | [Show](https://adventjs.dev/challenges/2023/6)  | [Go](./2023/challenge-06/challenge-06.ts) |
+| 07  |          The 3D boxes          |       🟢       | [Show](https://adventjs.dev/challenges/2023/7)  | [Go](./2023/challenge-07/challenge-07.ts) |
+| 08  |     Sorting the warehouse      |       🟠       | [Show](https://adventjs.dev/challenges/2023/8)  | [Go](./2023/challenge-08/challenge-08.ts) |
+| 09  |        Switch the light        |       🟢       | [Show](https://adventjs.dev/challenges/2023/9)  | [Go](./2023/challenge-09/challenge-09.ts) |
+| 10  | Create your owm Christmas tree |       🟢       | [Show](https://adventjs.dev/challenges/2023/10) | [Go](./2023/challenge-10/challenge-10.ts) |
+| 11  |               --               |       --       |                       --                        |                    --                     |
+| 12  |               --               |       --       |                       --                        |                    --                     |
+| 13  |               --               |       --       |                       --                        |                    --                     |
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+| 25  |               --               |       --       |                       --                        |                    --                     |
 
 </details>