Remove Duplicates from String Problem Statement

You are provided a string STR of length N, consisting solely of lowercase English letters.

Your task is to remove all duplicate occurrences of characters in the string.

Example:

Input:

abcadeecfb

Output:

abcdef

Explanation:

After removing duplicates, the string becomes abcdef.

Constraints:

1 ≤ N

Question

You are provided a string STR of length N, consisting solely of lowercase English letters.

Your task is to remove all duplicate occurrences of characters in the string.

abcadeecfb

abcdef

After removing duplicates, the string becomes abcdef.

Accepted Answer

public string RemoveDuplicate(string Input)

{

string output = "";

while(Input.Length !=0)

{

string firstLetter = Input.Substring(0, 1);

output = output + firstLetter;

Input = Input.Replace(firstLetter, "");

}

return output;

}

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