题目 Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the registered course list for each student who comes for a query. Input Specification: Each input fi…

1039 Course List for Student (25 分)   Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the registered course list for each student who comes for a query.…

Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the registered course list for each student who comes for a query. Input Specification: Each input file…

题意: 输入两个正整数N和K(N<=40000,K<=2500),分别为学生和课程的数量.接下来输入K门课的信息,先输入每门课的ID再输入有多少学生选了这门课,接下来输入学生们的ID.最后N次询问,输入学生的ID输出该学生选了多少们课,输出所选课程的数量,按照递增序输出课程的ID. trick: 第5个数据点出现段错误,把原本以map存学生对应ID再映射vector存储该学生所选课程改成vector嵌套在map内,就没有段错误的问题出现,疑似映射过程中指针漂移??? AAAAAccepted…

Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K=3, then you must output 3→2→1→6→5→4; if K=4, you must output 4→3→2→1→5→6. Input Specification:…

题目链接:http://www.patest.cn/contests/pat-a-practise/1039 题目: 1039. Course List for Student (25) 时间限制 200 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Zhejiang University has 40000 students and provides 2500 courses. Now given the student…

PAT乙级:1090危险品装箱(25分) 题干 集装箱运输货物时,我们必须特别小心,不能把不相容的货物装在一只箱子里.比如氧化剂绝对不能跟易燃液体同箱,否则很容易造成爆炸. 本题给定一张不相容物品的清单,需要你检查每一张集装箱货品清单,判断它们是否能装在同一只箱子里. 输入格式: 输入第一行给出两个正整数:N (≤104) 是成对的不相容物品的对数:M (≤100) 是集装箱货品清单的单数. 随后数据分两大块给出.第一块有 N 行,每行给出一对不相容的物品.第二块有 M 行,每行给出一箱货物的清…

PAT乙级:1070 结绳 (25分) 题干 给定一段一段的绳子,你需要把它们串成一条绳.每次串连的时候,是把两段绳子对折,再如下图所示套接在一起.这样得到的绳子又被当成是另一段绳子,可以再次对折去跟另一段绳子串连.每次串连后,原来两段绳子的长度就会减半. 给定 N 段绳子的长度,你需要找出它们能串成的绳子的最大长度. 输入格式: 每个输入包含 1 个测试用例.每个测试用例第 1 行给出正整数 N (2≤N≤104):第 2 行给出 N 个正整数,即原始绳段的长度,数字间以空格分隔.所有整数都不…

1039 Course List for Student (25 分) Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the registered course list for each student who comes for a query. I…

1083 List Grades (25 分) Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and output those student records of which the grades are in a given interval. I…