Challan (fine)Calculator for Traffic Violation

You should try yourself to do your own homework.
Please note this is a very simple task, if you won't eventually succeed, then you'll could be a great Project Manager.

Rather posting home work questions, post what are all the things you tried to solve it. And then ask the regarding questions. I hope nobody will do your homework for free.

//Header files
#include <iostream.h> //this header file is included to use cout and cin
#include <cstdlib> //this header file is included to use clearing screen function


//Main function
void main(void)
{//Start of main function

//Variable declaration
int violationType; //this varaible is used in switch statement for violation type
int fineAmount; //this variable is used in each case for amount of fine
int challanDays; //this varaible is used in each case for days passed to challan
char choice; //this varaible is used in do-while loop for choice to calculate next challan

do
{ //Start of do-while loop

//Clearing Screen
system("cls");

//Show output
cout<<"******* CHALLAN CALCULATOR FOR TRAFFIC VIOLATIONS ******* \n\n";
cout<<"Enter 1 for breaking traffic signal \n";
cout<<"Enter 2 for over speeding \n";
cout<<"Enter 3 for not wearing seat belt \n";
cout<<"\nEnter the type of traffic voilation (1,2 or 3): ";

//Input for traffic violation
cin>>violationType;

switch(violationType)
{ //Start of switch

case 1:
fineAmount = 500;
cout<<"\nEnter number of days passed till challan date: ";
cin>>challanDays;

if (challanDays <= 10)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount;
}
else if (challanDays > 10 && challanDays <=30)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2;
}
else
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2.5;
}
break;

case 2:
fineAmount = 300;
cout<<"\nEnter number of days passed till challan date: ";
cin>>challanDays;

if (challanDays <= 10)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount;
}
else if (challanDays > 10 && challanDays <=30)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2;
}
else
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2.5;
}
break;

case 3:
fineAmount = 200;
cout<<"\nEnter number of days passed till challan date: ";
cin>>challanDays;

if (challanDays <= 10)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount;
}
else if (challanDays > 10 && challanDays <=30)
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2;
}
else
{
cout<<"\nTotal amount of challan is Rs."<<fineAmount * 2.5;
}
break;

//Default case when user will entered wrong value
default:
cout<<"\nEnter a valid type of traffic violation";
break;
} //End of switch

cout<<"\n\nDo you want to calculate another challan (y/n): ";
cin>> choice;

} //end of do-while loop
while (choice == 'y' || choice == 'Y');

}//End of main function