bold_words_in_string

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758. Bold Words in String (Easy)

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[String]

Hints

Hint 1

First, determine which letters are bold and store that information in mask[i] = if i-th character is bold. Then, insert the tags at the beginning and end of groups. The start of a group is if and only if (mask[i] and (i == 0 or not mask[i-1])), and the end of a group is similar.