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10

# Remove Duplicates From String

Difficulty: MEDIUM
Contributed By
Anish De |Level 1
Avg. time to solve
25 min

Problem Statement

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

##### For Example:
``````If the given string is:

Then after deleting all duplicate occurrences, the string looks like this:
abcdef
``````
##### Input Format:
``````The only input line contains a string (STR).
``````
##### Output Format:
``````Print the string after removing all the duplicate occurrences.
``````
##### Constraints:
``````1 <= N <= 4*10^5

Time Limit: 1sec
``````
##### Sample Input 1:
``````abcadeecfb
``````
##### Sample Output 1:
``````abcdef
``````
##### Sample Input 2:
``````zzzzzxx
``````
##### Sample Output 2:
``````zx
``````
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