zoukankan      html  css  js  c++  java
  • 1047 Student List for Course (25分)

    Zhejiang University has 40,000 students and provides 2,500 courses. Now given the registered course list of each student, you are supposed to output the student name lists of all the courses.

    Input Specification:

    Each input file contains one test case. For each case, the first line contains 2 numbers: N (≤), the total number of students, and K (≤), the total number of courses. Then N lines follow, each contains a student's name (3 capital English letters plus a one-digit number), a positive number C (≤) which is the number of courses that this student has registered, and then followed by C course numbers. For the sake of simplicity, the courses are numbered from 1 to K.

    Output Specification:

    For each test case, print the student name lists of all the courses in increasing order of the course numbers. For each course, first print in one line the course number and the number of registered students, separated by a space. Then output the students' names in alphabetical order. Each name occupies a line.

    Sample Input:

    10 5
    ZOE1 2 4 5
    ANN0 3 5 2 1
    BOB5 5 3 4 2 1 5
    JOE4 1 2
    JAY9 4 1 2 5 4
    FRA8 3 4 2 5
    DON2 2 4 5
    AMY7 1 5
    KAT3 3 5 4 2
    LOR6 4 2 4 1 5
    

    Sample Output:

    1 4
    ANN0
    BOB5
    JAY9
    LOR6
    2 7
    ANN0
    BOB5
    FRA8
    JAY9
    JOE4
    KAT3
    LOR6
    3 1
    BOB5
    4 7
    BOB5
    DON2
    FRA8
    JAY9
    KAT3
    LOR6
    ZOE1
    5 9
    AMY7
    ANN0
    BOB5
    DON2
    FRA8
    JAY9
    KAT3
    LOR6
    ZOE1

    用vec
     1 #define _CRT_SECURE_NO_WARNINGS
     2 #include <climits>
     3 #include<iostream>
     4 #include<vector>
     5 #include<queue>
     6 #include<map>
     7 #include<set>
     8 #include<stack>
     9 #include<algorithm>
    10 #include<string>
    11 #include<cmath>
    12 using namespace std;
    13 int N, K;
    14 vector<string> V[2501];
    15 bool compare(string& a, string& b)
    16 {
    17     return a < b;
    18 }
    19 int main()
    20 {
    21     scanf("%d%d", &N, &K);
    22     for (int i = 0; i < N; i++)
    23     {
    24         char s[5];
    25         int C, num;
    26         scanf("%s %d", s,&C);
    27         string name(s);
    28         for (int j = 0; j < C; j++)
    29         {
    30             scanf("%d", &num);
    31             V[num].push_back(name);
    32         }
    33     }
    34     for (int i = 1; i <= K; i++)
    35         sort(V[i].begin(), V[i].end(), compare);
    36     for (int i = 1; i <= K; i++)
    37     {
    38         printf("%d %d
    ", i, V[i].size());        
    39         for (auto it : V[i])
    40             cout << it<<endl;
    41     }
    42 }
    View Code
    tor就是过不了最后一个测试点

  • 相关阅读:
    cssReset
    CSS的一些小技巧
    前端图标神器
    单例模式
    CSS 控制Html页面高度导致抖动问题的原因
    PHP中include()与require()的区别说明
    extends和implements区别
    静态,抽象类、接口、类库
    jQuery轮播图(手动点击轮播)
    jQuery实现大图轮播
  • 原文地址:https://www.cnblogs.com/57one/p/12037365.html
Copyright © 2011-2022 走看看