1028. List Sorting (25)
2015-08-11 09:37
323 查看
Excel can sort records according to any column. Now you are supposed to imitate this function.
Input
Each input file contains one test case. For each case, the first line contains two integers N (<=100000) and C, where N is the number of records and C is the column that you are supposed to sort the records with. Then N lines follow, each contains a record
of a student. A student's record consists of his or her distinct ID (a 6-digit number), name (a string with no more than 8 characters without space), and grade (an integer between 0 and 100, inclusive).
Output
For each test case, output the sorting result in N lines. That is, if C = 1 then the records must be sorted in increasing order according to ID's; if C = 2 then the records must be sorted in non-decreasing order according to names; and if C = 3 then the records
must be sorted in non-decreasing order according to grades. If there are several students who have the same name or grade, they must be sorted according to their ID's in increasing order.
Sample Input 1
Sample Output 1
Sample Input 2
Sample Output 2
Sample Input 3
Sample Output 3
提交代码
——————————
比较简单
这里用到sort函数进行排序。
然后,全部用到cin的时候,会运行超时,换成scanf就可以了。
Input
Each input file contains one test case. For each case, the first line contains two integers N (<=100000) and C, where N is the number of records and C is the column that you are supposed to sort the records with. Then N lines follow, each contains a record
of a student. A student's record consists of his or her distinct ID (a 6-digit number), name (a string with no more than 8 characters without space), and grade (an integer between 0 and 100, inclusive).
Output
For each test case, output the sorting result in N lines. That is, if C = 1 then the records must be sorted in increasing order according to ID's; if C = 2 then the records must be sorted in non-decreasing order according to names; and if C = 3 then the records
must be sorted in non-decreasing order according to grades. If there are several students who have the same name or grade, they must be sorted according to their ID's in increasing order.
Sample Input 1
3 1 000007 James 85 000010 Amy 90 000001 Zoe 60
Sample Output 1
000001 Zoe 60 000007 James 85 000010 Amy 90
Sample Input 2
4 2 000007 James 85 000010 Amy 90 000001 Zoe 60 000002 James 98
Sample Output 2
000010 Amy 90 000002 James 98 000007 James 85 000001 Zoe 60
Sample Input 3
4 3 000007 James 85 000010 Amy 90 000001 Zoe 60 000002 James 90
Sample Output 3
000001 Zoe 60 000007 James 85 000002 James 90 000010 Amy 90
提交代码
——————————
比较简单
这里用到sort函数进行排序。
然后,全部用到cin的时候,会运行超时,换成scanf就可以了。
#include <iostream> #include <cstring> #include <vector> #include <algorithm> using namespace std; /* run this program using the console pauser or add your own getch, system("pause") or input loop */ struct student{ int id; string name; int grade; }; int n,c; bool cmp_id(student a, student b){ return a.id<b.id; } bool cmp_name(student a, student b){ if(a.name!=b.name) return a.name<b.name; else return a.id<b.id; } bool cmp_grade(student a, student b){ if(a.grade!=b.grade) return a.grade<b.grade; else return a.id<b.id; } vector<student> v; int main(int argc, char** argv) { scanf("%d %d",&n,&c); //v.resize(n); for(int i=0; i<n; i++){ student s; scanf("%d",&s.id); cin>>s.name; scanf("%d",&s.grade); v.push_back(s); } if(c==1) sort(v.begin(),v.end(),cmp_id); else if(c==2) sort(v.begin(),v.end(),cmp_name); else sort(v.begin(),v.end(),cmp_grade); for(int i=0; i<n; i++){ printf("%06d ",v[i].id); cout<<v[i].name<<" "; printf("%d\n",v[i].grade); } return 0; }
相关文章推荐
- uvalive5009(三分)
- strdup
- Android 增量更新实例
- Android Volley框架(一):StringRequest、JsonObjectRequest、JsonArrayRequest
- Codeforces Round #315 (Div. 2)
- 遍历多维数组
- Air Raid
- Cocos2d-x学习笔记(十)—— 缓存机制
- 如何更新RHEV平台的GUEST代理和驱动
- ios 单例模式的写法
- 17-集合框架-15-常用对象API(集合框架-ArrayList集合存储自定对象)
- Select2插件 IE下 autofocus bug的解决方法
- SQL技巧之分组求和
- error LNK2019: 无法解析的外部符号 _cvHaarDetectObjects,该符号在函数 "void __cdecl detect_and_draw(struct _IplImage
- pyinstaller 打包时出现No Module Named pkg_resources
- 在B获取A的数据——深入浅出讲ContentProvider
- Calendar Date SimpleDateFormat (2)
- 通知中心
- INIT_WORK
- hdu 1501 Zipper 拉链