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ssadwlll 好数据原来是碰到单独的一个字符1就要输出两个1,和规则“一串单独的字符前后都要加一个1”不矛盾(我给理解错了)
样例:12344
输出:11123144
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这两个1才是1的11
样例果然是神样例,任何理解,任何程序都能过。。
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