Python程序:查找首字母相同的单词
假设我们有一组小写字母单词,我们需要找到所有单词首字母相同的连续子列表的最大长度。
例如,如果输入是 ["she", "sells", "seashells", "on", "the", "seashore"],则输出为 3,因为三个连续的单词 "she"、"sells"、"seashells" 的首字母都是 's'。
为了解决这个问题,我们将遵循以下步骤:
- maxlength := 0
- curr_letter := Null, curr_length := 0
- 遍历words中的每个单词:
- 如果 curr_letter 为空或 curr_letter 与 word[0] 不相同,则
- maxlength := maxlength 和 curr_length 之间的最大值
- curr_letter := word[0], curr_length := 1
- 否则:
- curr_length := curr_length + 1
- 如果 curr_letter 为空或 curr_letter 与 word[0] 不相同,则
- 返回 maxlength 和 curr_length 之间的最大值
让我们来看下面的实现,以便更好地理解:
示例
class Solution: def solve(self, words): maxlength = 0 curr_letter, curr_length = None, 0 for word in words: if not curr_letter or curr_letter != word[0]: maxlength = max(maxlength, curr_length) curr_letter, curr_length = word[0], 1 else: curr_length += 1 return max(maxlength, curr_length) ob = Solution() words = ["she", "sells", "seashells", "on", "the", "seashore"] print(ob.solve(words))
输入
["she", "sells", "seashells", "on", "the", "seashore"]
输出
3
广告