题目整数的个数答题地址：http//pkuic.openjudge.cn/ziyoulianxi//AdfacbafdbfdcfacadedafdaebBdbbdecddadabfceadbfbbfcfCaafabcadbececabadcbcaaceabaDefffbbabacbdbfdeddcccffEbcaccbbdcfccbabffbdcaadfb