难度:简单
????????给你两个字符串?
word1
?和?word2
?。请你从?word1
?开始,通过交替添加字母来合并字符串。如果一个字符串比另一个字符串长,就将多出来的字母追加到合并后字符串的末尾。????????返回?合并后的字符串?。
示例 1:
输入:word1 = "abc", word2 = "pqr" 输出:"apbqcr" 解释:字符串合并情况如下所示: word1: a b c word2: p q r 合并后: a p b q c r示例 2:
输入:word1 = "ab", word2 = "pqrs" 输出:"apbqrs" 解释:注意,word2 比 word1 长,"rs" 需要追加到合并后字符串的末尾。 word1: a b word2: p q r s 合并后: a p b q r s示例 3:
输入:word1 = "abcd", word2 = "pq" 输出:"apbqcd" 解释:注意,word1 比 word2 长,"cd" 需要追加到合并后字符串的末尾。 word1: a b c d word2: p q 合并后: a p b q c d提示:
1 <= word1.length, word2.length <= 100
word1
?和?word2
?由小写英文字母组成题解:
class Solution(object): def mergeAlternately(self, word1, word2): list_word1 = list(word1) list_word2 = list(word2) final_res = [] if len(list_word1) > len(list_word2): list_word1_main = list_word1[0:len(list_word2)] list_word1_Minor = list_word1[len(list_word2):len(list_word1)] res = zip(list_word1_main,list_word2) for i in res: for j in i: final_res.append(j) final_res.extend(list_word1_Minor) return "".join(final_res) elif len(list_word2) > len(list_word1): list_word2_main = list_word2[0:len(list_word1)] list_word2_Minor = list_word2[len(list_word1):len(list_word2)] res = zip(list_word1,list_word2_main) for i in res: for j in i: final_res.append(j) final_res.extend(list_word2_Minor) return "".join(final_res) else: res = zip(list_word1,list_word2) for i in res: for j in i: final_res.append(j) return "".join(final_res)