Find Common Characters

package main

func commonChars(words []string) []string {
	common := [26]int{}
	for index := range common {
		common[index] = 101
	}
	for _, word := range words {
		count := [26]int{}
		for _, character := range word {
			count[character-'a']++
		}
		for index := range common {
			if count[index] < common[index] {
				common[index] = count[index]
			}
		}
	}
	result := []string{}
	for index, count := range common {
		for used := 0; used < count; used++ {
			result = append(result, string(rune('a'+index)))
		}
	}
	return result
}

from collections import Counter


class Solution:
    def commonChars(self, words: list[str]) -> list[str]:
        common = Counter(words[0])
        for word in words[1:]: common &= Counter(word)
        return list(common.elements())

function commonChars(words: string[]): string[] {
  const common = new Array<number>(26).fill(Number.POSITIVE_INFINITY);
  for (const word of words) { const count = new Array<number>(26).fill(0); for (const character of word) count[character.charCodeAt(0) - 97] += 1; for (let index = 0; index < 26; index += 1) common[index] = Math.min(common[index], count[index]); }
  const result: string[] = []; common.forEach((count, index) => { for (let used = 0; used < count; used += 1) result.push(String.fromCharCode(97 + index)); }); return result;
}