Interview Guides

First Repeated Word in Paragraph

Easy

Hash TablesdeduplicationStrings

Problem

Given a string text, return the first word that repeats when scanning from left to right. Comparison should be case-insensitive, and punctuation should be ignored. If no word repeats, return an empty string.

Constraints

1 <= len(text) <= 10^5
text contains letters, digits, spaces, and punctuation
Word matching is case-insensitive
Ignore leading, trailing, and repeated punctuation around words

Problem

Constraints

1 <= len(text) <= 10^5
text contains letters, digits, spaces, and punctuation
Word matching is case-insensitive
Ignore leading, trailing, and repeated punctuation around words

Practice Python

Python 3.10

Open on desktop for the full Python editor with syntax highlighting and autocomplete.

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First Non-Repeated CharacterEasy

Normalize and Count Word FrequenciesEasy

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All questions/Coding

First Repeated Word in Paragraph

Easy

Hash TablesdeduplicationStrings

Problem

Constraints

1 <= len(text) <= 10^5
text contains letters, digits, spaces, and punctuation
Word matching is case-insensitive
Ignore leading, trailing, and repeated punctuation around words

Problem

Constraints

1 <= len(text) <= 10^5
text contains letters, digits, spaces, and punctuation
Word matching is case-insensitive
Ignore leading, trailing, and repeated punctuation around words

Practice Python

Python 3.10

Open on desktop for the full Python editor with syntax highlighting and autocomplete.

Up next

First Non-Repeated CharacterEasy

Normalize and Count Word FrequenciesEasy

First Non-Repeating CharacterMedium

Next question

First Repeated Word in Paragraph | Dataford Interview Questions