Count Anagram
You’re given a single string of space‑separated words. Some words may be exact duplicates, and others may be anagrams of each other. After removing exact duplicates, count how many words are “extra” members of any anagram group.

Input: "aa aa odg dog gdo"
Dedup’d words: ["aa", "odg", "dog", "gdo"]
Anagram groups:
"aa" → group size 1 → contributes 0
"odg"/"dog"/"gdo" → group size 3 → contributes 2
Output: 2

Rotate & Concatenate Array
Problem:
Given an array of non‑negative integers arr of length 𝑛
the first element k = arr[0] tells you how many positions to left‑rotate the entire array. After rotating, write out each element in order and parse the concatenated string as one integer.
Input
arr = [2, 3, 4, 1, 6, 10]
k = 2 → rotated = [4,1,6,10,2,3] → "4161023" → 4161023

arr = [3,2,1,6]
k = 3 → rotated = [6,3,2,1] → "6321" → 6321