Leetcode Problem 1002. Find Common Characters

1002. Find Common Characters

Leetcode Solutions

Counting Characters and Finding Minimum Frequency

  1. Initialize a common count array of size 26 (for each letter of the alphabet) with INT_MAX to represent the minimum frequency of each character.
  2. For each word in the words array: a. Initialize a temporary count array of size 26 with zeros. b. Count the frequency of each character in the current word and update the temporary count array. c. Update the common count array by taking the minimum of its current value and the temporary count for each character.
  3. Iterate over the common count array: a. For each character with a non-zero minimum frequency, add the character to the result list the number of times equal to its minimum frequency.
  4. Return the result list.
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Character Intersection Using Sets

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