Add 交替合并字符串.py
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题目: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。
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示例 1:
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输入:word1 = "abc", word2 = "pqr"
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输出:"apbqcr"
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解释:字符串合并情况如下所示:
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word1: a b c
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word2: p q r
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合并后: a p b q c r
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示例 2:
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输入:word1 = "ab", word2 = "pqrs"
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输出:"apbqrs"
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解释:注意,word2 比 word1 长,"rs" 需要追加到合并后字符串的末尾。
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word1: a b
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word2: p q r s
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合并后: a p b q r s
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示例 3:
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输入:word1 = "abcd", word2 = "pq"
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输出:"apbqcd"
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解释:注意,word1 比 word2 长,"cd" 需要追加到合并后字符串的末尾。
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word1: a b c d
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word2: p q
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合并后: a p b q c d
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"""
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