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 <= 4*10^5
- Time Limit: 1 sec
AnswerBot
2d
Remove duplicate occurrences of characters in a given string of lowercase English letters.
Iterate through the string and keep track of characters seen so far using a set.
Append characters to a new str...read more
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