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I have been set and assignment which i have the basic structure of what the thing should be like.
#include <conio.h>
#include <iostream.h>
#include <iomanip.h>

int minutesused, rental, prepaidminutes, paidmins, minscost, totalcost, totalmins;
char tariff[1];

void main(){
cout<<"Enter the Tariff: ";
cout<<"Enter Minutes call time used this month: \n";

if (tariff == "A" || tariff == "a")
        rental = 0;
        prepaidminutes = 0;
if (tariff == "B" || tariff == "b")
        rental = 4.00;
        prepaidminutes = 50;
if (tariff == "C" || tariff == "c")
        rental = 7.25;
        prepaidminutes = 100;
if (tariff == "D" || tariff == "d")
        rental = 12.75;
        prepaidminutes = 200;
if (tariff == "E" || tariff == "e")
        rental = 20.00;
        prepaidminutes = 400;

if (minutesused > prepaidminutes)
        paidmins = minutesused - prepaidminutes;

if (paidmins <= 10)
        minscost = paidmins * 0.10;
else if (paidmins <= 30)
        minscost = 3.00 + (paidmins - 10) * 0.2;
        minscost = 7.00 + (paidmins - 30) * 0.1;

totalcost = rental + minscost;

cout<<setw(15)<<"Call Cost "<<char(156)<<minscost<<"\n";
cout<<setw(15)<<"Rental "<<char(156)<<rental<<"\n";
cout<<setw(15)<<"Total Cost "<<char(156)<<totalcost<<"\n";

It is a mobile phone tariff.
it asks for the tarif and the minutes u have used then gives out the final monthly cost includin the minutes that where free.
the only thing is that i cant seem to get it to work
it asks for everythin but doesnt do any working out and the final stage finishes with no prices.
btw im using Borland C++
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we do not do homework on this site.

here are some tips.

1. get familiar with the index of your text book
look up 'if' and read how to use curly braces {}

2. the following link has links to C++ tutorials

3. search the net for c++, examples, if
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