PAT-A1153/B1095 Decode Registration Card of PAT/解码PAT准考证 题目内容及题解
A registration card number of PAT consists of 4 parts:
- the 1st letter represents the test level, namely, T for the top level, A for advance and B for basic;
- the 2nd - 4th digits are the test site number, ranged from 101 to 999;
- the 5th - 10th digits give the test date, in the form of yymmdd;
- finally the 11th - 13th digits are the testee's number, ranged from 000 to 999.
Now given a set of registration card numbers and the scores of the card owners, you are supposed to output the various statistics according to the given queries.
PAT 准考证号由 4 部分组成：
- 第 1 位是级别，即 T 代表顶级；A 代表甲级；B 代表乙级；
- 第 2~4 位是考场编号，范围从 101 到 999；
- 第 5~10 位是考试日期，格式为年、月、日顺次各占 2 位；
- 最后 11~13 位是考生编号，范围从 000 到 999。
现给定一系列考生的准考证号和他们的成绩，请你按照要求输出各种统计信息。
Input Specification:
Each input file contains one test case. For each case, the first line gives two positive integers N (≤10^4) and M (≤100), the numbers of cards and the queries, respectively.
Then N lines follow, each gives a card number and the owner's score (integer in [0,100]), separated by a space.
After the info of testees, there are M lines, each gives a query in the format Type Term, where
- Type being 1 means to output all the testees on a given level, in non-increasing order of their scores. The corresponding Term will be the letter which specifies the level;
- Type being 2 means to output the total number of testees together with their total scores in a given site. The corresponding Term will then be the site number;
- Type being 3 means to output the total number of testees of every site for a given test date. The corresponding Term will then be the date, given in the same format as in the registration card.
输入首先在一行中给出两个正整数 N（≤10^4）和 M（≤100），分别为考生人数和统计要求的个数。
接下来 N 行，每行给出一个考生的准考证号和其分数（在区间 [0,100] 内的整数），其间以空格分隔。
考生信息之后，再给出 M 行，每行给出一个统计要求，格式为：类型 指令，其中
- 类型 为 1 表示要求按分数非升序输出某个指定级别的考生的成绩，对应的 指令 则给出代表指定级别的字母；
- 类型 为 2 表示要求将某指定考场的考生人数和总分统计输出，对应的 指令 则给出指定考场的编号；
- 类型 为 3 表示要求将某指定日期的考生人数分考场统计输出，对应的 指令 则给出指定日期，格式与准考证上日期相同。
Output Specification:
For each query, first print in a line Case #: input, where # is the index of the query case, starting from 1; and input is a copy of the corresponding input query. Then output as requested:
- for a type 1 query, the output format is the same as in input, that is, CardNumber Score. If there is a tie of the scores, output in increasing alphabetical order of their card numbers (uniqueness of the card numbers is guaranteed);
- for a type 2 query, output in the format Nt Ns where Nt is the total number of testees and Ns is their total score;
- for a type 3 query, output in the format Site Nt where Site is the site number and Nt is the total number of testees at Site. The output must be in non-increasing order of Nt's, or in increasing order of site numbers if there is a tie of Nt.
If the result of a query is empty, simply print NA.
对每项统计要求，首先在一行中输出 Case #: 要求，其中 # 是该项要求的编号，从 1 开始；要求 即复制输入给出的要求。随后输出相应的统计结果：
- 类型 为 1 的指令，输出格式与输入的考生信息格式相同，即 准考证号 成绩。对于分数并列的考生，按其准考证号的字典序递增输出（题目保证无重复准考证号）；
- 类型 为 2 的指令，按 人数 总分 的格式输出；
- 类型 为 3 的指令，输出按人数非递增顺序，格式为 考场编号 总人数。若人数并列则按考场编号递增顺序输出。
如果查询结果为空，则输出 NA。
Sample Input:
8 4
B123180908127 99
B102180908003 86
A112180318002 98
T107150310127 62
A107180908108 100
T123180908010 78
B112160918035 88
A107180908021 98
1 A
2 107
3 180908
2 999
Sample Output:
Case 1: 1 A
A107180908108 100
A107180908021 98
A112180318002 98
Case 2: 2 107
3 260
Case 3: 3 180908
107 2
123 2
102 1
Case 4: 2 999
NA
解题思路
- 初始化、读入数据，并分别按照等级、考场，日期等提前归类；
- 按照题目要求分别编制不同的输出函数；
- 根据请求的不同调用不同的输出函数进行输出；
- 输出完成后返回零值。
代码
#include
#include
#include 运行结果
