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  1. #include <stdio.h>
  2. #include <string.h>
  3. struct akb_db
  4. {
  5.     char name[30];
  6.     char home[10];
  7.     int yar;
  8.     int mon;
  9.     int dy;
  10. };
  11. void sort_al(struct akb_db *, int);
  12. void sort_age(struct akb_db *, int);
  13. void pp(struct akb_db *, int, FILE *);
  14. int main()
  15. {
  16.     struct akb_db dat[100];
  17.     char buf[100], fn[30], name1[15], name2[15];
  18.     int n, m;
  19.     FILE *fp;
  20.  
  21.     printf("indata file name = ");
  22.     scanf("%s", fn);
  23.     fp = fopen(fn, "r");
  24.     for (n = 0; fgets(buf, 100, fp) != NULL; ++n)
  25.     {
  26.         sscanf(buf, "%s %s %s %d %d %d",
  27.                name1, name2, dat[n].home, &dat[n].yar, &dat[n].mon, &dat[n].dy);
  28.         sprintf(dat[n].name, "%s %s", name1, name2);
  29.     }
  30.     do
  31.     {
  32.         printf("MENU\n");
  33.         printf("1.Sorting in alphabetical order/2.Sorting in order of age.\n");
  34.         printf("Please input number:");
  35.         scanf("%d", &m);
  36.     }
  37.     while (m < 1 || m > 2);
  38.     if (m == 1)
  39.         sort_al(dat, n);
  40.     else
  41.         sort_age(dat, n);
  42.     return 0;
  43. }
  44. void sort_al(struct akb_db *dat, int n)
  45. {
  46.     FILE *fp = fopen("member_data_al.dat", "w");
  47.     char name_work1[30], name_work2[30], *p;
  48.     for (int i = 0; i < n; ++i)
  49.     {
  50.         for (int j = i + 1; j < n; ++j)
  51.         {
  52.             p = strchr(dat[i].name, ' ');
  53.             sprintf(name_work1, "%s", p + 1);
  54.             strncat(name_work1, dat[i].name, p - dat[i].name);
  55.             p = strchr(dat[j].name, ' ');
  56.             sprintf(name_work2, "%s", p + 1);
  57.             strncat(name_work2, dat[j].name, p - dat[j].name);
  58.             if (strcmp(name_work1, name_work2) > 0)
  59.             {
  60.                 struct akb_db t = dat[i];
  61.                 dat[i] = dat[j];
  62.                 dat[j] = t;
  63.             }
  64.         }
  65.     }
  66.     pp(dat, n, fp);
  67. }
  68. void sort_age(struct akb_db *dat, int n)
  69. {
  70.     FILE *fp = fopen("member_data_age.dat", "w");
  71.     char ymd1[20], ymd2[20];
  72.     for (int i = 0; i < n; ++i)
  73.     {
  74.         for (int j = i + 1; j < n; ++j)
  75.         {
  76.             sprintf(ymd1, "%d%02d%02d", dat[i].yar, dat[i].mon, dat[i].dy);
  77.             sprintf(ymd2, "%d%02d%02d", dat[j].yar, dat[j].mon, dat[j].dy);
  78.             if (strcmp(ymd1, ymd2) > 0)
  79.             {
  80.                 struct akb_db t = dat[i];
  81.                 dat[i] = dat[j];
  82.                 dat[j] = t;
  83.             }
  84.         }
  85.     }
  86.     pp(dat, n, fp);
  87. }
  88. void pp(struct akb_db *dat, int n, FILE *fp)
  89. {
  90.     char buf[100];
  91.     for (int i = 0; i < n; ++i)
  92.     {
  93.         sprintf(buf, "%s %s %d %d %d",
  94.                 dat[i].name, dat[i].home, dat[i].yar, dat[i].mon, dat[i].dy);
  95.         printf("%s\n", buf);
  96.         fprintf(fp, "%s\n", buf);
  97.     }
  98.     fclose(fp);
  99. }
  100.  
Runtime error #stdin #stdout 0s 2432KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/lTbY3z
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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