PAT甲1035题目链接1035 Password (20分)To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are a
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PAT甲1112字符串题目链接1112 Stucked Keyboard (20分)On a broken keyboard, some of the keys are always stucked. So when you type some sentences, the characters c
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PAT甲1077字符串题目链接1077 Kuchiguse (20分)The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be
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