测试输入包含若干测试用例。每个测试用例的第1行包含两个整数 N (N<=100000) 和 C,其中 N 是纪录的条数,C 是指定排序的列号。以下有N行,每行包含一条学生纪录。每条学生纪录由学号(6位数字,同组测试中没有重复的学号)、姓名(不超过8位且不包含空格的字符串)、成绩(闭区间[0, 100]内的整数)组成,每个项目间用1个空格隔开。当读到 N=0 时,全部输入结束,相应的结果不要输出。
对每个测试用例,首先输出1行“Case:”。随后在 N 行中输出按要求排序后的结果,即:当 C=1 时,按学号递增排序;当 C=2时,按姓名的非递减字典序排序;当 C=3 时,按成绩的非递减排序。当若干学生具有相同姓名或者相同成绩时,则按他们的学号递增排序。
3 1 000007 James 85 000010 Amy 90 000001 Zoe 60
Case: 000001 Zoe 60 000007 James 85 000010 Amy 90
#include <stdio.h> #include <stdlib.h> #include <string.h> typedef struct student { char id[7]; char name[9]; int mark; }stu; int cmp1(stu *a,stu *b) { return strcmp(a->id,b->id); } int cmp2(stu *a,stu *b) { if(strcmp(a->name,b->name)==0)return strcmp(a->id,b->id); else return strcmp(a->name,b->name); } int cmp3(stu *a,stu *b) { if((a->mark-b->mark)==0)return strcmp(a->id,b->id); else return a->mark-b->mark; } int main() { int N,type,i; while(~scanf("%d%d",&N,&type) && N!=0) { stu s[N]; for(i=0;i<N;i++)scanf("%s%s%d",s[i].id,s[i].name,&s[i].mark); if(type==1)qsort(s,N,sizeof(stu),cmp1); else if(type==2)qsort(s,N,sizeof(stu),cmp2); else qsort(s,N,sizeof(stu),cmp3); printf("Case:\n"); for(i=0;i<N;i++)printf("%s %s %d\n",s[i].id,s[i].name,s[i].mark); } }
#include <iostream> #include <algorithm> using namespace std; struct Student{ string id, name; int score;}; int n = 0, c = 0; Student sts[100000]; int MySort(Student sts1, Student sts2) { switch (c) { case 1: return sts1.id < sts2.id; case 2: return sts1.name == sts2.name ? sts1.id < sts2.id : sts1.name < sts2.name; case 3: return sts1.score == sts2.score ? sts1.id < sts2.id : sts1.score < sts2.score; } } int main() { while (cin >> n >> c && 0 != n) for (int i = 0; i < n; ++i) cin >> sts[i].id >> sts[i].name >> sts[i].score; sort(sts, sts + n, MySort); cout << "Case:" << endl; for (int i = 0; i < n; ++i) cout << sts[i].id << ' ' << sts[i].name << ' ' << sts[i].score << endl; return 0; }
#include <stdio.h> #include <algorithm> #include <string.h> using namespace std; typedef struct Stu{ char num[6]; char name[8]; int score; }Stu; bool cmp1(Stu &a,Stu &b){ int tmp = strcmp(a.num,b.num); return tmp<0; } bool cmp2(Stu &a,Stu &b){ int tmp = strcmp(a.name,b.name); return tmp<0; } bool cmp3(Stu &a,Stu &b){ return a.score<b.score; } int main(){ int N,C; scanf("%d%d",&N,&C); Stu * student = new Stu[N]; for(int i=0;i<N;i++){ scanf("%s%s%d",&student[i].num, &student[i].name,&student[i].score); } printf("Case:\n"); switch(C){ case 1:sort(student,student+N,cmp1);break; case 2:sort(student,student+N,cmp2);break; case 3:sort(student,student+N,cmp3);break; } for(int i=0;i<N;i++){ printf("%s %s %d\n",student[i].num,student[i].name,student[i].score); } return 0; } 感激大佬解答
arr = []
a = input()
cnt = 1
while a != "0 0":
num, key = map(int, a.split())
for i in range(num):
arr.append(input().split())
print("Case " + str(cnt) + ":")
if key == 1:
arr.sort(key=lambda c: int(c[0]))
elif key == 2:
arr.sort(key=lambda c: (c[1], int(c[0])))
else:
arr.sort(key=lambda c: (int(c[2]), int(c[0])))
for i in arr: print(" ".join(i))
cnt += 1
arr = []
a = input()
#include<bits/stdc++.h> using namespace std; struct student { string num; string name; int chengji; } stu[100]; bool cmp1(student a, student b) { return a.num < b.num; } bool cmp2(student a, student b) { return a.name < b.name; } bool cmp3(student a, student b) { if (a.name == b.name || a.chengji == b.chengji) { return a.num < b.num; } else { return a.chengji < b.chengji; } } int main() { int n, c; while (cin >> n >> c) { if (n == 0) { break; } for (int i = 0; i < n; i++) { cin >> stu[i].num >> stu[i].name >> stu[i].chengji; } if (c == 1) { sort(stu, stu + n, cmp1); } else if (c == 2) { sort(stu, stu + n, cmp2); } else if (c == 3) { sort(stu, stu + n, cmp3); } cout << "Case:" << endl; for (int i = 0; i < n; i++) { cout << stu[i].num << " " << stu[i].name << " " << stu[i].chengji << endl; } cout << endl; } return 0; }
import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while (scanner.hasNext()) { int n = scanner.nextInt(); int caseNumber = scanner.nextInt(); Student[] students = new Student[n]; for (int i = 0; i < n; i++) { String ids = scanner.next(); int id = Integer.parseInt(ids); students[i] = new Student(ids, id, scanner.next(), scanner.nextInt(), caseNumber); } Arrays.sort(students); System.out.println("Case:"); for (Student student : students) System.out.println(student); } } static class Student implements Comparable<Student> { String ids; Integer id; String name; Integer score; Integer caseNumber; public Student(String ids, Integer id, String name, Integer score, Integer caseNumber) { this.ids = ids; this.id = id; this.name = name; this.score = score; this.caseNumber = caseNumber; } @Override public int compareTo(Student o) { if (caseNumber == 1) return this.id.compareTo(o.id); else if (caseNumber == 2) return this.name.equals(o.name) ? this.id.compareTo(o.id) : this.name.compareTo(o.name); //caseNumber==3 else return this.score.equals(o.score) ? this.id.compareTo(o.id) : this.score.compareTo(o.score); } @Override public String toString() { return ids + " " + name + " " + score; } } }
#include <iostream> #include <utility> using namespace std; #include "vector" #include "algorithm" struct Student{ string id; string name; int score; Student()=default; Student(string id,string name,int score):id(std::move(id)),name(std::move(name)),score(score){} }; bool cmp1(Student s1,Student s2){ return s1.id<s2.id; } bool cmp2(Student s1,Student s2){ return s1.name<s2.name; } bool cmp3(Student s1,Student s2){ if(s1.name==s2.name||s1.score==s2.score){ return s1.id<s2.id; } return s1.score<s2.score; } int main() { int N,C; while(cin>>N>>C){ if(N==0) break; vector<Student>students(N); for(int i=0;i<N;i++){ string id; string name; int score; cin>>id>>name>>score; students[i]=Student(id,name,score); } if(C==1) sort(students.begin(),students.end(),cmp1); else if(C==2) sort(students.begin(),students.end(),cmp2); else if(C==3) sort(students.begin(),students.end(),cmp3); cout<<"Case:"<<endl; for(auto a:students){ cout<<a.id<<" "<<a.name<<" "<<a.score<<endl; } } }
import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while(scanner.hasNext()) { int n = scanner.nextInt(); int i = scanner.nextInt(); List<Student> myList = new ArrayList<Student>(); for (int j = 0; j < n; j++) { Student student = new Student(scanner.next(),scanner.next(),scanner.nextInt()); myList.add(student); } if (i == 1) { Collections.sort(myList,Comparator.comparing(Student::getNo)); System.out.println("Case:"); for (Student student : myList) { System.out.println(student.no+" "+student.name+" "+student.grade); } }else if (i == 2) { Collections.sort(myList,Comparator.comparing(Student::getName)); System.out.println("Case:"); for (Student student : myList) { System.out.println(student.no+" "+student.name+" "+student.grade); } }else { Collections.sort(myList,Comparator.comparing(Student::getGrade).thenComparing(Student::getNo)); System.out.println("Case:"); for (Student student : myList) { System.out.println(student.no+" "+student.name+" "+student.grade); } } } } } class Student{ String no; String name; int grade; public Student(String no,String name,int grade) { this.no = no; this.name = name; this.grade = grade; } public void setNo(String no) { this.no = no; } public String getNo() { return no; } public void setGrade(int grade) { this.grade = grade; } public int getGrade() { return grade; } public void setName(String name) { this.name = name; } public String getName() { return name; } }
#include <bits/stdc++.h> using namespace std; int n,c; struct arc{ string num; string name; int grade; }; bool cmp1(arc a,arc b) { return stoi(a.num)<stoi(b.num); } bool cmp(arc a,arc b) { if(c==2) return a.name<=b.name; else if(c==3) return a.grade<=b.grade; } int main(){ while(cin>>n>>c) { if(n==0) break; arc stu[n]; for(int i=0;i<n;i++) { cin>>stu[i].num>>stu[i].name>>stu[i].grade; } sort(stu,stu+n,cmp1); if(c!=1) stable_sort(stu,stu+n,cmp); cout<<"case"<<':'<<endl; for(int i=0;i<n;i++) { cout<<stu[i].num<<" "<<stu[i].name<<" "<<stu[i].grade<<endl; } } return 0; }
#include <algorithm> #include <iostream> #include <string> #include <vector> using namespace std; int c; //排序方式 struct Student { string id; //学号 string name; //姓名 int score; //成绩 bool operator<(const Student& stu) { switch (c) { case 1: return id < stu.id; case 2: return name < stu.name || (name == stu.name && id < stu.id); default: //case 3: return score < stu.score || (score == stu.score && id < stu.id); } } }; int main() { int n; while (cin >> n >> c) { vector<Student>arr(n); for (auto& stu : arr) { cin >> stu.id >> stu.name >> stu.score; } sort(arr.begin(), arr.end()); cout << "Case:" << endl; for (const auto& stu : arr) { cout << stu.id << " " << stu.name << " " << stu.score << endl; } } return 0; }
#include <iostream> #include <string> #include <vector> #include <algorithm> using namespace std; struct Student{ string sno, name; int g; }; int main() { int n, c; while (cin >> n >> c){ vector<Student> v(n); for (auto &s : v) cin >> s.sno >> s.name >> s.g; sort(v.begin(), v.end(), [c](Student s1, Student s2)->bool{ if (c == 1) return s1.sno.compare(s2.sno) < 0; if (c == 2) { if (s1.name.compare(s2.name) == 0) return s1.sno.compare(s2.sno) < 0; return s1.name.compare(s2.name) < 0; } if (s1.g == s2.g) return s1.sno.compare(s2.sno) < 0; return s1.g < s2.g; }); cout << "Case:" << endl; for (auto &s : v) cout << s.sno << " " << s.name << " " << s.g << endl; } }
#include <algorithm> #include <cstdio> #include <iostream> using namespace std; struct stuInfo{ string order; string name; int grade; }; stuInfo stu[100000]; bool compare1(stuInfo a,stuInfo b){ return a.order<b.order; } bool compare2(stuInfo a,stuInfo b){ if(a.name==b.name){ return a.order<b.order; } return a.name<b.name; } bool compare3(stuInfo a,stuInfo b){ if(a.grade==b.grade){ return a.order<b.order; } return a.grade<b.grade; } int main() { bool (*compare[3])(stuInfo,stuInfo); compare[0]=compare1; compare[1]=compare2; compare[2]=compare3; int n,c; while(scanf("%d%d",&n,&c)!=-1){ for(int i=0;i<n;i++){ cin>>stu[i].order>>stu[i].name>>stu[i].grade; } sort(stu,stu+n,compare[c-1]); printf("Case:\n"); for(int i=0;i<n;i++){ cout<<stu[i].order<<" "<<stu[i].name<<" "<<stu[i].grade<<endl; } } }
#include<iostream> #include<string> #include<vector> #include<algorithm> #define _CRT_SECURE_NO_WARNINGS #pragma warning(disable:4996) using namespace std; int C; struct Student { string id; string name; int score; }; bool mycmp(Student s1,Student s2) { switch (C) { default: break; case 1: return s1.id < s2.id; case 2: return s1.name == s2.name ? s1.id < s2.id : s1.name < s2.name; case 3: return s1.score == s2.score ? s1.id < s2.id : s1.score < s2.score; } return false; } int main() { int N; while (scanf("%d %d", &N, &C) != EOF) { string sid; string sname; int sscore; vector<Student> vec; for (int i = 0; i < N; i++) { cin >> sid >> sname >> sscore; Student s = { sid, sname, sscore }; vec.push_back(s); } sort(vec.begin(), vec.end(), mycmp); cout << "Case:" << endl; for (int i = 0; i < vec.size(); i++) { cout << vec[i].id << " " << vec[i].name << " " << vec[i].score << endl; } } return 0; }
#include<stdio.h> #include<algorithm> #include<string.h> using namespace std; struct student{ char id[7]; char name[9]; int score; }stu[100000]; bool cmp1(student a,student b){ return strcmp(a.id,b.id)<0; } bool cmp2(student a,student b){ if(strcmp(a.name,b.name)!=0) return strcmp(a.name,b.name)<0; else return strcmp(a.id,b.id)<0; } bool cmp3(student a,student b){ if(a.score!=b.score) return a.score<b.score; else return strcmp(a.id,b.id)<0; } int main(){ int n,c; while(scanf("%d %d",&n,&c)!=EOF){ int i; for(i=0;i<n;i++){ scanf("%s %s %d",stu[i].id,stu[i].name,&stu[i].score); } if(c==1) sort(stu,stu+n,cmp1); else if(c==2) sort(stu,stu+n,cmp2); else if(c==3) sort(stu,stu+n,cmp3); printf("Case:\n"); for(i=0;i<n;i++){ printf("%s %s %d\n",stu[i].id,stu[i].name,stu[i].score); } } return 0; }
#include <stdio.h> #include<stdlib.h> #include<string.h> typedef struct{ int score; char name[20]; char id[20]; }Student,*snode; int cpr1(const void * a,const void* b) { snode x = (snode) a; snode y = (snode) b; return strcmp(x->id,y->id); } int cpr2(const void * a,const void* b) { snode x = (snode) a; snode y = (snode) b; if(strcmp(x->name,y->name)) return strcmp(x->name,y->name); else return strcmp(x->id,y->id); } int cpr3(const void * a,const void* b) { snode x = (snode) a; snode y = (snode) b; if(x->score != y->score) return x->score - y->score; else return strcmp(x->id,y->id); } int main() { int N,C; int cnt = 0; while(scanf("%d",&N)!=EOF) { cnt ++; scanf("%d",&C); snode s = (snode) malloc(sizeof(Student) * N); for (snode i = s; i < s + N; i++) scanf("%s %s %d", i->id, i->name, &i->score); if(C == 1) qsort(s, N, sizeof(s[0]), cpr1); else if(C == 2) qsort(s, N, sizeof(s[0]), cpr2); else qsort(s, N, sizeof(s[0]), cpr3); printf("Case:\n"); for (snode i = s; i < s + N; i++) printf("%s %s %d\n", i->id, i->name, i->score); } return 0; }
#include <iostream> #include <stdio.h> #include <string.h> #include <algorithm> using namespace std; struct Student{ char num[10],name[10]; int grade; }stu[100010]; bool cmp1(Student a,Student b){ return strcmp(a.num,b.num)<0; } bool cmp2(Student a,Student b){ if(strcmp(a.name,b.name)){ return strcmp(a.name,b.name)<0; }else{ return strcmp(a.num,b.num)<0; } } bool cmp3(Student a,Student b){ if(a.grade!=b.grade){ return a.grade<b.grade; }else{ return strcmp(a.num,b.num)<0; } } int main(){ int n,c; while(scanf("%d %d",&n,&c)!=EOF && n>0){ for(int i=0;i<n;i++){ scanf("%s %s %d",stu[i].num,stu[i].name,&stu[i].grade); } switch (c) { case 1: sort(stu,stu+n,cmp1); break; case 2: sort(stu,stu+n,cmp2); break; case 3: sort(stu,stu+n,cmp3); break; default: break; } cout<<"Case "<<c<<":"<<endl; for(int i=0;i<n;i++){ printf("%s %s %d\n",stu[i].num,stu[i].name,stu[i].grade); } } }
#include<iostream> #include<algorithm> #include<vector> using namespace std; typedef struct Student{ string num; string name; int score; Student(string num,string name,int score):num(num),name(name),score(score){} }Student; bool cmp1(Student s1,Student s2){ return s1.num<s2.num; } bool cmp2(Student s1,Student s2){ if(s1.name!=s2.name) return s1.name<s2.name; else return s1.num<s2.num; } bool cmp3(Student s1,Student s2){ if(s1.score!=s2.score) return s1.score<s2.score; else return s1.num<s2.num; } void print(vector<Student> s){ cout<<"Case:"<<endl; for(vector<Student>::iterator it=s.begin();it!=s.end();it++){ cout<<it->num<<" "<<it->name<<" "<<it->score<<endl; } } int main(){ int N,C; while(cin>>N&&N){ cin>>C; vector<Student> s; string num,name; int score; while(N--){ cin>>num>>name>>score; s.push_back(Student(num,name,score)); } switch(C){ case 1: sort(s.begin(),s.end(),cmp1); print(s); break; case 2: sort(s.begin(),s.end(),cmp2); print(s); break; case 3: sort(s.begin(),s.end(),cmp3); print(s); break; } } return 0; }
#include <bits/stdc++.h> using namespace std; const int N = 1e5+10; struct Student{ string id; string name; int sorce; }stu[N]; bool cmp1(Student a,Student b){ return a.id<b.id; } bool cmp2(Student a,Student b){ if(a.name==b.name) return cmp1(a,b); else return a.name < b.name; } bool cmp3(Student a,Student b){ if(a.sorce==b.sorce) return cmp1(a,b); else return a.sorce < b.sorce; } int main(){ int n,c; scanf("%d%d",&n,&c); for(int i=0;i<n;i++){ int sorce; string id; string name; cin>>id>>name>>sorce; stu[i] = {id,name,sorce}; } if(c==1) sort(stu,stu+n,cmp1); else if(c==2) sort(stu,stu+n,cmp2); else if(c==3) sort(stu,stu+n,cmp3); printf("Case:\n"); for(int i=0;i<n;i++){ cout<<stu[i].id<<" "; cout<<stu[i].name<<" "; cout<<stu[i].sorce<<endl; } }