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Leetcode
Easy
Arrays
Strings
Find Words Containing Character

Return all words that contain a given character at least once.

Acceptance 100%
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Problem Statement

Problem

You are given an array of lowercase words and a single character x.

Return the indices of all words that contain x at least once, in the same order as the input.

A word is selected if any character in the word matches x exactly.

Input Format

  • words: an array of strings
  • x: a character

Output Format

  • Return an array of indices of the words that contain x.

Constraints

  • 1 <= words.length <= 100
  • 1 <= words[i].length <= 100
  • x is a single lowercase English letter
  • All words contain only lowercase English letters

Notes

The task is a straightforward scan through each string and keep the positions of matching words.

Input Format

  • words: array of lowercase strings
  • x: single lowercase character

Output Format

  • array of integer indices in increasing order

Constraints

  • 1 <= words.length <= 100
  • 1 <= words[i].length <= 100
  • x is one lowercase English letter
  • words contain only lowercase English letters
Examples
Sample cases returned by the problem API.

Example 1

Input

words = ["leet","code"], x = "e"

Output

[0,1]

Explanation

Both "leet" and "code" contain the character 'e'.

Example 2

Input

words = ["abc","bcd","aaaa","cbc"], x = "a"

Output

[0,2]

Explanation

Only "abc" and "aaaa" contain 'a'.

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