1 #include <stdio.h>
2 #include <string.h>
3 #include <stdlib.h>
4
5 typedef struct student {
6 char *name;
7 };
8
9 void scan(student stu[], int &n){
10 char str[1024];
11 scanf("%d", &n);
12 for(int i = 0; i < n; ++i){
13 scanf("%s", str);
14 int len = strlen(str);
15 stu[i].name = (char *)malloc((len + 1) * sizeof(char));
16 strcpy(stu[i].name, str);
17 }
18 }
19
20 void print(student stu[], int n){
21 printf("%d\n", n);
22 for(int i = 0; i < n; ++i){
23 printf("%s ", stu[i].name);
24 }
25 puts("");
26 }
27 //按字典序 排序
28 int comp(const void *a, const void *b){
29 student *numa = (student *)a, *numb = (student *)b;
30 return strcmp(numa->name, numb->name);
31 }
32
33 int main(){
34 int n;
35 student stu[10];
36 scan(stu, n);
37
38 print(stu, n);
39
40 qsort(stu, n, sizeof(student), comp);
41
42 print(stu, n);
43 return 0;
44 }
45 /*
46 10
47 9只小昆虫
48 8只小昆虫
49 7只小昆虫
50 6只小昆虫
51 5只小昆虫
52 4只小昆虫
53 3只小昆虫
54 2只小昆虫
55 1只小昆虫
56 0只小昆虫
57
58 */
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