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  1. #include <stdio.h>
  2. #include <string.h>
  3.  //dai6kai
  4. typedef struct {
  5.     char name;  
  6.     int english;
  7.     int math;
  8. } Student;
  9.  
  10. void swap_student(Student *data1, Student *data2) {
  11.     Student temp = *data1;
  12.     *data1 = *data2;
  13.     *data2 = temp;
  14. }
  15.  
  16. void sort_english(Student data[]) {
  17.     for (int i = 0; i < 5 ; i++) {
  18.         for (int j = i + 1; j < 5; j++) {
  19.             if (data[i].english > data[j].english) {
  20.                 swap_student(&data[i], &data[j]);
  21.             }
  22.         }
  23.     }
  24. }
  25.  
  26. void sort_math(Student data[]) {
  27.     for (int i = 0; i < 5 ; i++) {
  28.         for (int j = i + 1; j < 5; j++) {
  29.             if (data[i].math < data[j].math) {  
  30.                 swap_student(&data[i], &data[j]);
  31.             }
  32.         }
  33.     }
  34. }
  35.  
  36. void sort_name(Student data[]) {
  37.     for (int i = 0; i < 5 ; i++) {
  38.         for (int j = i + 1; j < 5; j++) {
  39.             if (data[i].name > data[j].name) {  
  40.                 swap_student(&data[i], &data[j]);
  41.             }
  42.         }
  43.     }
  44. }
  45.  
  46. int main() {
  47.  
  48.     Student data[5] = {
  49.         {'e', 60, 70},
  50.         {'b', 80, 75},
  51.         {'a', 90, 72},
  52.         {'c', 70, 60},
  53.         {'d', 50, 56}
  54.     };
  55.  
  56.     printf("sort_english\n");
  57.     sort_english(data);
  58.     for (int i = 0; i < 5; i++) {
  59.         printf("name: %c, english: %d, math: %d\n", data[i].name, data[i].english, data[i].math);
  60.     }
  61.  
  62.     printf("\nsort_math\n");
  63.     sort_math(data);
  64.     for (int i = 0; i < 5; i++) {
  65.         printf("name: %c, english: %d, math: %d\n", data[i].name, data[i].english, data[i].math);
  66.     }
  67.  
  68.     printf("\nsort_name\n");
  69.     sort_name(data);
  70.     for (int i = 0; i < 5; i++) {
  71.         printf("name: %c, english: %d, math: %d\n", data[i].name, data[i].english, data[i].math);
  72.     }
  73.  
  74.     return 0;
  75. }
Success #stdin #stdout 0.01s 5276KB
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stdin
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Standard input is empty
stdout
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sort_english
name: d, english: 50, math: 56
name: e, english: 60, math: 70
name: c, english: 70, math: 60
name: b, english: 80, math: 75
name: a, english: 90, math: 72

sort_math
name: b, english: 80, math: 75
name: a, english: 90, math: 72
name: e, english: 60, math: 70
name: c, english: 70, math: 60
name: d, english: 50, math: 56

sort_name
name: a, english: 90, math: 72
name: b, english: 80, math: 75
name: c, english: 70, math: 60
name: d, english: 50, math: 56
name: e, english: 60, math: 70
https://ideone.com/1IE0dR
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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