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Dsa Hashing Easy

Unique Character Counter

You need to count the number of unique characters in a string, ignoring spaces and case differences. Write a program to achieve this and return the count. Input: - A single string (1 ≤ |s| ≤ 1000) containing letters and spaces. Output: - An integer representing the number of unique characters. Example: Input: Hello World Output: 7

Key concepts

hashingcountsstring manipulation

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