https://leetcode.cn/problems/number-of-distinct-averages

Author: masx200

README.md

@@ -45,6 +45,8 @@ Step 2. Add the dependency
 
 <summary>展开查看</summary>
 
+https://leetcode.cn/problems/number-of-distinct-averages
+
 https://leetcode.cn/problems/custom-sort-string
 
 https://leetcode.cn/problems/domino-and-tromino-tiling

number-of-distinct-averages/index.ts

@@ -0,0 +1,4 @@
+export default function distinctAverages(nums: number[]): number {
+    nums.sort((a, b) => a - b);
+    return new Set<number>(nums.map((v, i, a) => v + a[a.length - i - 1])).size;
+}