🔢 added challenge 18: the digital clock

Author: jamerrq

lib/rank.png

@@ -38,6 +38,7 @@ Para esta versión estaré usando TypeScript, en su versión 5.3.2.
 | 15  | [**Robot autónomo**](https://adventjs.dev/es/challenges/2023/15)           |     🟠     | [TS](./src/challenges/15.ts) | [SPEC](./src/tests/15.spec.ts) |
 | 16  | [**Viernes de deploy**](https://adventjs.dev/es/challenges/2023/16)           |     🟢     | [TS](./src/challenges/16.ts) | [SPEC](./src/tests/16.spec.ts) |
 | 17  | [**Optimizando el alquiler**](https://adventjs.dev/es/challenges/2023/17)           |     🟢     | [TS](./src/challenges/17.ts) | [SPEC](./src/tests/17.spec.ts) |
+| 18  | [**El reloj digital**](https://adventjs.dev/es/challenges/2023/18)           |     🔴     | [TS](./src/challenges/18.ts) | [SPEC](./src/tests/18.spec.ts) |
 
 ## Herramientas utilizadas 🛠️
 

readme.md

@@ -0,0 +1,46 @@
+export function drawClock (time: string): string[][] {
+  const digitGrid: Record<string, string> = {
+    '00': '1',
+    '01': '14',
+    '02': 'A',
+    10: '1237',
+    11: 'N',
+    12: '56',
+    20: '1237',
+    21: 'N',
+    22: '56',
+    30: '17',
+    31: '170',
+    32: 'A',
+    40: '134579',
+    41: 'N',
+    42: '2',
+    50: '134579',
+    51: 'N',
+    52: '2',
+    60: '147',
+    61: '147',
+    62: 'A'
+  }
+  const clockGrid: string[][] = []
+  for (let i = 0; i < 7; i++) {
+    clockGrid[i] = new Array(17).fill(' ')
+  }
+  clockGrid[2][8] = '*'
+  clockGrid[4][8] = '*'
+  const digits = [...time.replace(':', '')]
+  let currentDigit = digits.shift() as string
+  for (const index of [0, 4, 10, 14]) {
+    for (let row = 0; row < 7; ++row) {
+      for (let col = 0; col < 3; ++col) {
+        const notFill = digitGrid[`${row}${col}`]
+        if (notFill === 'N') continue
+        if (!notFill.includes(currentDigit) || notFill === 'A') {
+          clockGrid[row][col + index] = '*'
+        }
+      }
+    }
+    currentDigit = digits.shift() as string
+  }
+  return clockGrid
+}