题目：

题解：

func findWords(words []string) (ans []string) {const rowIdx = "12210111011122000010020202"
next:for _, word := range words {idx := rowIdx[unicode.ToLower(rune(word[0]))-'a']for _, ch := range word[1:] {if rowIdx[unicode.ToLower(ch)-'a'] != idx {continue next}}ans = append(ans, word)}return
}