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  1. // C code
  2. // This code will compute the values of the sales ticket sales for concerts
  3. // and sort the entries by those values
  4. // Developer: H Reynolds CMIS102
  5. // Date: 12 Jul 19
  6.  
  7. #include <stdio.h>
  8.  
  9. #define MAXN 100 // max characters in a group/concert name
  10. #define MAXG  50 // max concerts/groups
  11. #define MAXC   3 // max categories
  12.  
  13. char  group  [MAXG][MAXN];
  14. int   fans   [MAXG][MAXC];
  15. float prices [MAXC];
  16. float sales  [MAXG];
  17. int   count = 0;
  18.  
  19. void printWelcome () {
  20.   printf ("Hayden Reynolds, CMIS 102\n");
  21.   printf ("This program computes ticket sales for concerts\nand the total sales for a series of concerts.\n\n");
  22. }
  23.  
  24. void printArray () {
  25.   printf ("%15s%5s%5s%5s%10s\n", 
  26.   "Concert", "s1", "s2", "s3", "Sales");
  27.   for (int i = 0; i < count; i++) {
  28.     printf ("%15s", group [i]);
  29.     for (int j = 0; j < MAXC; j++) {
  30.       printf ("%5d", fans[i][j]);
  31.     } // end for each category
  32.     printf ("%10.2f\n", sales [i]);
  33.   } // end for each group
  34. } // end function printArray
  35.  
  36. void computeSales () {
  37.   for (int i = 0; i < count; i++) {
  38.     sales [i] = 0;
  39.     for (int j = 0; j < MAXC; j++) {
  40.       sales [i] += prices [j] * fans [i][j];
  41.     } // end for each category
  42.   } // end for each group
  43. } // end function computeSales
  44.  
  45. void switchRows (int m, int n) {
  46.   char tc;
  47.   int  ti;
  48.   float v;
  49.   // printf ("Switching %d with %d\n", m, n);
  50.   for (int i = 0; i < MAXN; i++) {
  51.     tc = group [m][i];
  52.     group [m][i] = group [n][i];
  53.     group [n][i] = tc;
  54.   } // end for each character in a group name
  55.   for (int i = 0; i < MAXC; i++) {
  56.     ti = fans [m][i];
  57.     fans [m][i] = fans [n][i];
  58.     fans [n][i] = ti;
  59.   } // end for each fan category
  60.   v = sales [m];
  61.   sales [m] = sales [n];
  62.   sales [n] = v;
  63. } // end switch
  64.  
  65. int findMinSales (int m) {
  66.   float min = sales [m];
  67.   int target = m;
  68.   for (int i = m+1; i < count; i++)
  69.     if (sales [i] < min) {
  70.       min = sales [i];
  71.       target = i;
  72.     } // end new max found
  73.   return target;
  74. } // end function findMinSales
  75.  
  76. void sortBySales () {
  77.   int target;
  78.   for (int i = 0; i < count; i++) {
  79.     target = findMinSales (i);
  80.     if (target > i)
  81.       switchRows (i, target);
  82.   } // for each concert
  83. } // end function sortBySales
  84.  
  85. void getData () {
  86.   // for (int i = 0; i < MAXG; i++) sales [i] = 0;
  87.   printf ("Enter ticket prices in each of %d cateogories: ", MAXC);
  88.   for (int i = 0; i < MAXC; i++)
  89.     scanf ("%f", &prices [i]);
  90.   printf ("-- Enter group and fans in %d categories\n", MAXC);
  91.   printf (" Type a \".\" to finish entries:\n");
  92.   for (int i = 0; i < MAXG; i++) {
  93.     scanf ("%s", group[i]);
  94.     if (group [i][0] == '.') 
  95.       break;
  96.     count++;
  97.     for (int j = 0; j < MAXC; j++)
  98.       scanf ("%d", &fans[i][j]);
  99.   } // end for each group
  100. } // end function getData
  101.  
  102. int main(void) {
  103.   printWelcome ();
  104.   getData ();
  105.   computeSales ();
  106.   printArray ();
  107.   printf ("\n --- Sorted ---\n");
  108.   sortBySales ();
  109.   printArray ();
  110.   printf("... bye ...\n");
  111.   return 0;
  112. }
Success #stdin #stdout 0s 9432KB
comments (?)
stdin
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10.0 22.0 31.0
a 1 2 3
b 3 3 1
c 5 3 1
d 3 3 5
e 1 1 2
f 9 4 3
g 4 5 6.
stdout
copy 
Hayden Reynolds, CMIS 102
This program computes ticket sales for concerts
and the total sales for a series of concerts.

Enter ticket prices in each of 3 cateogories: -- Enter group and fans in 3 categories
 Type a "." to finish entries:
        Concert   s1   s2   s3     Sales
              a    1    2    3    147.00
              b    3    3    1    127.00
              c    5    3    1    147.00
              d    3    3    5    251.00
              e    1    1    2     94.00
              f    9    4    3    271.00
              g    4    5    6    336.00

 --- Sorted ---
        Concert   s1   s2   s3     Sales
              e    1    1    2     94.00
              b    3    3    1    127.00
              c    5    3    1    147.00
              a    1    2    3    147.00
              d    3    3    5    251.00
              f    9    4    3    271.00
              g    4    5    6    336.00
... bye ...
https://ideone.com/wtXJyh
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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