Update Solution.go

Author: yanglbme

solution/0900-0999/0973.K Closest Points to Origin/Solution.go

@@ -1,7 +1,6 @@
 func kClosest(points [][]int, k int) [][]int {
 	sort.Slice(points, func(i, j int) bool {
-		a, b := points[i], points[j]
-		return a[0]*a[0]+a[1]*a[1] < b[0]*b[0]+b[1]*b[1]
+		return math.Hypot(float64(points[i][0]), float64(points[i][1])) < math.Hypot(float64(points[j][0]), float64(points[j][1]))
 	})
 	return points[:k]
-}
+}