import { PrefixTreeWithSum } from "https://deno.land/x/masx200_leetcode_test@7.6.4/mod.ts";
import { type PrefixTreeWithSum } from "https://deno.land/x/masx200_leetcode_test@7.6.4/mod.ts";
import { PrefixTreeWithSum } from "https://deno.land/x/masx200_leetcode_test@7.6.4/mod.ts";
import { type PrefixTreeWithSum } from "https://deno.land/x/masx200_leetcode_test@7.6.4/mod.ts";