Higest and Lowest

[peachy900757]

i have a text file that i am reading from! This is what the text file looks like:-

01 633.79
02 2242.03
06 4587.12
08 2318.98
05 565.32
07 865.99
03 6591.96
04 1974.90
09 453.33

i have manager to read from the file and get it to display but now i need some code, so i can view just the highest or just the lowset!

[Salem]

if ( current > max ) max = current;

Just do that as you loop through your array of values.

[peachy900757]

i am not too sure what you mean because i am very new to c++! i only started doing it about 3 months ago! this is my university project! Maybe if i show you my code you might beable to giv me more help!

#include <iostream> 
#include <fstream> 

using namespace std; 

int sales_data();   //Sales data function
int save_data();   // Save data function

int main() 
{ 
    int num; 
    
    cout << "MAIN MENU" << endl;        //Main Menu
    cout << "\nEnter a number between 1 and 3" << endl; 
    cout << "\n-----------------------------" << endl; 
    cout << "1. View Sales Details" << endl; 
    cout << "2. Export and Save Sales Details" << endl; 
    cout << "3. Exit" << endl; 
    cout << "-----------------------------" << endl; 
    cin >> num; 


   switch(num) 
   { 
       case 1: 
       system("CLS"); 
       sales_data(); 
       break; 
       case 2:
       system("CLS");
       save_data();
       break; 
       case 3: 
       system("exit"); 
       break; 
       default: 
       cout << "Incorrect Number" << endl; 
       break; 
   } 
} 

int sales_data() 
{ 

   int num;
   
   int depid;    //Department ID numbers
   double sales; //Sales Figures
   
   ifstream salesfile ("ica_sales.txt");   //Open sales file
         if (salesfile.is_open())
         {           
         cout << "SALES DATA\n" << endl;           
         while (! salesfile.eof() )
         {      
         salesfile >> depid >> sales;
         cout << depid << "\t" << sales << endl; //Output department IDs and sales figures
         }
         salesfile.close();
         }
         else cout << "Unable to open file" << endl;   
   
   cout << "\nSALES MENU" << endl; // Sales Menu
   cout << "\nEnter a number between 1 and 4" << endl; 
   cout << "\n-----------------------------" << endl; 
   cout << "1. View Highest Department" << endl; 
   cout << "2. View Lowest Department" << endl; 
   cout << "3. Back to main" << endl; 
   cout << "4. Exit" << endl; 
   cout << "-----------------------------" << endl; 
   cin >> num; 

   switch(num) 
   { 
       case 1: 
       
       break; 
       case 2: 
       break; 
       case 3: 
       system("CLS");
       main();
       break; 
       case 4: 
       system("exit"); 
       break; 
       default: 
       cout << "Incorrect Number" << endl; 
       break; 
   } 
   return 0; 
}

int save_data()
{
    int num;
    
   cout << "Enter a number between 1 and 4" << endl; 
   cout << "-----------------------------" << endl; 
   cout << "1. Dont no what i need in here yet!!!" << endl;
   cout << "2. Back to Main" << endl; 
   cout << "3. Exit" << endl;
   cout << "-----------------------------" << endl; 
   cin >> num; 

   switch(num) 
   { 
       case 1: 
       break;
       case 2:
       system("CLS"); 
       main();
       break;  
       case 3: 
       system("exit"); 
       break; 
       default: 
       cout << "Incorrect Number" << endl; 
       break; 
   } 
   return 0; 
}

[Salem]

> salesfile >> depid >> sales;
Maybe create a struct containing deptID and sales?

Maybe create an array of that struct and read the file into that array (or better yet, use a std::vector)

You're behind the curve IMO if you don't know about structures and arrays after 3 months.