3582 - Generate Tag for Video Caption.

Easy

You are given a string caption representing the caption for a video.

The following actions must be performed in order to generate a valid tag for the video:

• Combine all words in the string into a single camelCase string prefixed with '#'. A camelCase string is one where the first letter of all words except the first one is capitalized. All characters after the first character in each word must be lowercase.

• Remove all characters that are not an English letter, except the first '#'.

• Truncate the result to a maximum of 100 characters.

Return the tag after performing the actions on caption.

Example 1:

Input: caption = "Leetcode daily streak achieved"

Output: "#leetcodeDailyStreakAchieved"

Explanation:

The first letter for all words except "leetcode" should be capitalized.

Example 2:

Input: caption = "can I Go There"

Output: "#canIGoThere"

Explanation:

The first letter for all words except "can" should be capitalized.

Example 3:

Input: caption = "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"

Output: "#hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"

Explanation:

Since the first word has length 101, we need to truncate the last two letters from the word.

Constraints:

• 1 <= caption.length <= 150

• caption consists only of English letters and ' '.