Solve 2024-12

Add side-aware coordinate utils

2024/12/index.test.ts

@@ -0,0 +1,78 @@
+import { describe, expect, it } from 'bun:test';
+import { getSides, solveFirst, solveSecond } from './index.ts';
+
+describe('2024-12', () => {
+  it('first', () => {
+    expect(
+      solveFirst(`AAAA
+BBCD
+BBCC
+EEEC`)
+    ).toBe(140);
+    expect(
+      solveFirst(`OOOOO
+OXOXO
+OOOOO
+OXOXO
+OOOOO`)
+    ).toBe(772);
+    expect(
+      solveFirst(`RRRRIICCFF
+RRRRIICCCF
+VVRRRCCFFF
+VVRCCCJFFF
+VVVVCJJCFE
+VVIVCCJJEE
+VVIIICJJEE
+MIIIIIJJEE
+MIIISIJEEE
+MMMISSJEEE`)
+    ).toBe(1930);
+  });
+
+  it('second', () => {
+    // it takes too long
+    // so only run while `NODE_ENV=production bun test --coverage`
+    if (process.env.NODE_ENV === 'production') {
+      expect(
+        solveSecond(`EEEEE
+EXXXX
+EEEEE
+EXXXX
+EEEEE`)
+      ).toBe(236);
+      expect(
+        solveSecond(`AAAA
+BBCD
+BBCC
+EEEC`)
+      ).toBe(80);
+      expect(
+        solveSecond(`OOOOO
+OXOXO
+OOOOO
+OXOXO
+OOOOO`)
+      ).toBe(436);
+      expect(
+        solveSecond(`AAAAAA
+AAABBA
+AAABBA
+ABBAAA
+ABBAAA
+AAAAAA`)
+      ).toBe(368);
+    }
+  });
+
+  it('sides', () => {
+    expect(
+      getSides([
+        [0, 0],
+        [1, 0],
+        [2, 0],
+        [0, 1]
+      ])
+    ).toBe(6);
+  });
+});