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#include < stdio.

#include <stdio.h>

#define MAXN 100 // max characters in a group/concert name

#define MAXG 50 // max concerts/groups

#define MAXC 4 // max categories


char group [MAXG][MAXN];

int fans [MAXG][MAXC];

float prices [MAXC];

float sales [MAXG];

int count = 0;


void printArray () {

printf ("%15s%5s%5s%5s%10sn",

"Concert", "s1", "s2", "s3", "Sales");

for (int i = 0; i < count; i++) {

printf ("%15s", group [i]);

for (int j = 0; j < MAXC; j++) {

printf ("%5d", fans[i][j]);

} // end for each category

printf ("%10.2fn", sales [i]);

} // end for each group

} // end function printArray


void computeSales () {

for (int i = 0; i < count; i++) {

sales [i] = 0;

for (int j = 0; j < MAXC; j++) {

sales [i] += prices [j] * fans [i][j];

} // end for each category

} // end for each group

} // end function computeSales


void switchRows (int m, int n) {

char tc;

int ti;

float v;

// printf ("Switching %d with %dn", m, n);

for (int i = 0; i < MAXN; i++) {

tc = group [m][i];

group [m][i] = group [n][i];

group [n][i] = tc;

} // end for each character in a group name

for (int i = 0; i < MAXC; i++) {

ti = fans [m][i];

fans [m][i] = fans [n][i];

fans [n][i] = ti;

} // end for each fan category

v = sales [m];

sales [m] = sales [n];

sales [n] = v;

} // end switch


int findMinSales (int m) {

float min = sales [m];

int target = m;

for (int i = m+1; i < count; i++)

if (sales [i] < min) {

min = sales [i];

target = i;

} // end new max found

return target;

} // end function findMinSales


void computeTotalSalesForConcerts () {

int salesTot=0;

for (int i = 0; i < count; i++) {

sales [i] = 0;

for (int j = 0; j < MAXC; j++) {

sales [i] += prices [j] * fans [i][j];

} // end for each category

salesTot=salesTot+sales[i];

} // end for each group

printf("Total sales for all the concerts: %d",salesTot);


} // end function computeSales



void sortBySales () {

int target;

for (int i = 0; i < count; i++) {

target = findMinSales (i);

if (target > i)

switchRows (i, target);

} // for each concert

} // end function sortBySales


void getData () {

// for (int i = 0; i < MAXG; i++) sales [i] = 0;

printf ("Enter ticket prices in each of %d cateogories: ", MAXC);

for (int i = 0; i < MAXC; i++)

scanf ("%f", &prices [i]);

printf ("-- Enter group and fans in %d categoriesn", MAXC);

printf (" . to finish entries:n");

for (int i = 0; i < MAXG; i++) {

scanf ("%s", &group[i]);

if (group [i][0] == '.')

break;

count++;

for (int j = 0; j < MAXC; j++)

scanf ("%d", &fans[i][j]);

} // end for each group

} // end function getData


int main(void) {

getData ();

computeSales ();

printArray ();

printf ("n --- Sorted ---n");

sortBySales ();

printArray ();

computeTotalSalesForConcerts();

printf("... bye ...n");

return 0;

}


____________________________________________________

I am trying to create a variety of test cases focusing on the sorting algorithm, such as the final element is the smallest, the entire set is already sorted, etc. Explain the purpose of each test case, and check your code against each of those cases. 


Try using different inputs: a. What changes would you suggest to handle larger, more realistic numbers? b. What happens if any of the numbers, such as the ticket prices, are negative? c. What are your recommendations concerning negative input values? 


What changes should be made to the code if the customer wished to sort on the number of fans in category 1, the first of the three (or four) categories? Make those changes, test your code and confirm that it is working correctly. 

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