Solve 2025-08

2025-12-08 14:09:00 +01:00
parent 63a7a93aba
commit 5421fde574
6 changed files with 119 additions and 1 deletions
@@ -1,4 +1,4 @@
-import { sumBy } from './array.ts';
+import { sumArray, sumBy } from './array.ts';

 export const Sides = {
  TOP: 0,
@@ -167,3 +167,13 @@ export function calculateVariance<C extends Coordinate | CoordinateSide>(
    coords.length
  );
 }
+
+// TODO: add docs and tests
+
+export function euclideanDistanceSqrtless(a: number[], b: number[]): number {
+  return sumArray(a.map((d, i) => Math.pow(d - b[i], 2)));
+}
+
+export function euclideanDistance(a: number[], b: number[]): number {
+  return Math.sqrt(euclideanDistanceSqrtless(a, b));
+}