C++ help...

CBNewbie · #1 04-May-2008, 22:41

I really need help with a problem for a class. I'm completely lost on what to do. And, it's due tomorrow. Anyone that can help, please do, anything is greatly appreciated...

My problem is this:

I have a text file with the following in it

Code:

Abilene Amarillo 200
Abilene Dallas   220
Abilene Waco     360
Amarillo Dallas  350
Amarillo Waco    440
Dallas Waco       95

I have to read that in (no problem doing that), then my output must look like this:

Code:

 
               Abilene     Amarillo     Dallas     Waco
Abilene      0             200          220         360
Amarillo      200          0             350         440
Dallas        220          350          0            95
Waco        360          440          95           0

The requirements are:

1 dimensional array for city names
2 dimensional array for the distance
function to read the text
function to display the output

Here's what I've currently got down, not much, since I keep re-writing it trying to figure it out...

CPP / C++ / C Code:

#include <iostream>
#include <fstream>
#include <iostream>
#include <iomanip>
 
using namespace std;
 
void readFile1(ifstream &dataFile, string &city1Grab,  string &city2Grab, int &distanceGrab, int &i);
void display1(string city1[], int distance[], int i, int j);
string center(int width,string str1);
 
const int numCities=6;
 
int main()
{
    string header1="Texas Department of Transportation";
    string header2="Mileage chart";
    string city1Grab, city2Grab, city1[numCities]={"x"}, city2[numCities]={"x"};
    int distanceGrab, distance[6]={0}, i=0, j=0, x=0;
    string city[4]={"no"}, test;
 
    for(i=0;i<4;i++)
    {
        city1[i]="x";
        cout << city1[i] << endl;
    }
 
     cout << center(80,header1);
     cout << center(80,header2) << endl << endl;
 
    ifstream dataFile;
    dataFile.open ("dot.txt");
    readFile1(dataFile, city1Grab,  city2Grab, distanceGrab, i);
 
 
        i=0;
        //j=1;
        x=0;
    while(dataFile)
    {
        city1[i]=city1Grab;
        city2[i]=city2Grab;
        distance[x]=distanceGrab;
        //cout << city1[i] << "   " << city1[j] << "   " << distance[x] << endl;
        i++;
        x++;
        readFile1(dataFile, city1Grab,  city2Grab, distanceGrab, i);
 
    }
 
 
 
for(i=0;i<numCities;i++)
{
    cout << "city " << i << " = " << city1[i] << "   "
         << "city2 " << i << " = " << city2[i] << "   "
         << "distance" << i << " = " << distance[i] << endl;
}/*
for(i=0;i<6;i++)
{
    cout << "distance" << i << " = " << distance[i] << endl;
}*/
 
display1(city1, distance, i, j);
    return 0;
    dataFile.close();
}
 
void readFile1(ifstream &dataFile, string &city1Grab, string &city2Grab, int &distanceGrab, int &i)
{
    dataFile >> city1Grab >> city2Grab >> distanceGrab;
 
    return;
}
 
void display1(string city1[], int distance[], int i, int j)
{
    cout << setw(10) << left << " ";
    for(i=0;i<numCities;i+=2)
    {
        cout << setw(10) << left << city1[i];
    }
 
    return;
}
 
string center(int width,string str1)
{
    int sizeOfString;
    int padding;
    sizeOfString=str1.length();
    if ( width > sizeOfString)
    {
        padding=static_cast<float>((width-sizeOfString)/2);
        for (int i=0;i<padding;i++)
        {
        str1=' '+str1;
        }
        for (int i=0;i<padding;i++)
        {
        str1=str1+' ';
        }
    }
 
return str1;
}

I hate to ask for help on a class assignment, I'm just desperate, since it's due tomorrow. I'll be up all night, working on trying to figure this one out.
I assume I'm missing something really obvious, since I've had no problem doing everything else in the class. Any help, at all, would be greatly appreciated. I just need to get this finished so I don't get a zero, and I can understand what I'm missing...

Thanks...

I hate to ask for help, as I usually figure these things out myself..

Peter_APIIT · #2 06-May-2008, 04:47

You just to format when you print to file.

I hope this help.

J-M · #3 06-May-2008, 08:36

I recommend reading some tutorial about C++.
http://www.arachnoid.com/cpptutor/index.html
Solution to your problem is in this page:
http://www.arachnoid.com/cpptutor/student3.html

zatora · #4 06-May-2008, 13:42

all i did is read from ur file by the way u need to leave one space after each data, i am not quite done yet but may be this will help u a little

CPP / C++ / C Code:

#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int main()
{
	int i,j,a,b,temp;
	int num[4][4];
	ifstream infile;
	ofstream outfile;
	string str1[4];
	string str2[4];
	infile.open("data.txt");
	outfile.open("output.txt");
	
	while(!infile.eof())
	{
		for(i=0;i<4;i++)
		{
			for(j=1+i;j<4;j++)
			{
				infile>>str1[i]>>str2[j]>>num[i][j];
				temp=num[i][j];
				a=j;b=i;num[a][b]=temp;
				
				
			}
			
		}
		for(i=0;i<4;i++)
		{	
			j=i;
			num[i][j]=0;
		}
		for(i=0;i<4;i++)
			for(j=0;j<4;j++)
				cout<<i<<" "<<j<<" "<<num[i][j]<<endl;

		
	
	}
	
		
	infile.close();
		outfile.close();
		return 0;
}

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Rate This Thread
Rate This Thread:

C++ help...

Re: C++ help...

Re: C++ help...

Re: C++ help...