Resume based. Find duplicate. Valid Parenthesis. Generate Random id Find max no of random id can be generated

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The question involves finding duplicates in an array, validating parentheses, generating random IDs, and determining the maximum number of random IDs that can be generated.

To find duplicates in an array, you can use a hash set to store unique elements and check for duplicates as you iterate through the array.
To validate parentheses, you can use a stack data structure to keep track of opening and closing parentheses.
To generate random IDs, you can use a combination of letters, numbers, and special characters.
To determine the maximum number of random IDs that can be generated, consider the length and complexity of the IDs.

Resume based. Find duplicate. Valid Parenthesis. Generate Random id Find max no of random id can be generated

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