C++ Program to Create a Sales Output System Assignment Solution.

#include

#include

#include

#include

using namespace std;

typedef struct

{

string firstname;

string lastname;

int noWeeks;

double salesdata[10][5] ; //max 10 weeks with each having 5 days

}salesman;

//loads sales man data from specified file and retures the number of salesmen loaded

int loadfile(string filename, salesman salesmen[]);

void process(salesman salesmen[], int count);

int main()

{

string infilename = "theSales.txt";

ifstream infile;

int count;

salesman salesmen[10]; //max 10 salesmen

count = loadfile(infilename, salesmen);

process(salesmen, count);

}

int loadfile(string filename, salesman salesmen[])

{

fstream infile;

int count;

infile.open(filename.c_str());

if(!infile.is_open())

{

cout << "ERROR: could not open file " << filename << endl;

exit(1);

}

infile >> count; // read the number of salesmen

for(int idx = 0; idx < count; idx++)

{

infile >> salesmen[idx].lastname >> salesmen[idx].firstname >> salesmen[idx].noWeeks;

for(int week = 0; week < salesmen[idx].noWeeks; week++) // for each week

{

for(int day = 0; day < 5; day++) // for each day in the week

infile >> salesmen[idx].salesdata[week][day];

}

}

infile.close();

return count;

}

void process(salesman salesmen[], int count)

{

double smTotal, smAvg ; //for an individual salesman

int totalWeeks = 0;

double grandTotalSales = 0, grandAvgSales = 0; //for overall (all the weeks of all salesmen

string filename;

ofstream outfile;

cout << "Enter output filename: " ;

cin >> filename;

outfile.open(filename.c_str());

if(!outfile.is_open())

{

cout << "Could not open output file " << filename << endl;

exit(1);

}

outfile << "Number of Salemen: " << count << endl;

outfile << fixed << setprecision(2);

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

{

outfile << salesmen[i].lastname << endl;

for(int week = 0; week < salesmen[i].noWeeks; week++)

{

//calculate weekly total and avg for the current saleman

smTotal = 0;

for(int day = 0; day < 5; day++)

{

smTotal += salesmen[i].salesdata[week][day];

}

grandTotalSales += smTotal;

smAvg = smTotal / 5;

outfile << smTotal << " " << smAvg << endl;

}

totalWeeks += salesmen[i].noWeeks;

}

grandAvgSales = grandTotalSales / totalWeeks;

outfile << "The total number of weeks altogether: " << totalWeeks << endl;

outfile << "The grand total sales: " << grandTotalSales << endl;

outfile << "Averge sales per week: " << grandAvgSales << endl;

outfile.close();

cout << "Finished processing. Check output file " << filename << endl;

}