Question

Write a C ++ program that asks the user for the speed of a vehicle (in miles per hour) and how many hours it has traveled. The program should then use a loop to display the distance the vehicle has traveled for each hour of that time period. Here is an example of the output:

What is the speed of the vehicle in mph? 40
How many hours has it traveled? 3
Hour Distance Traveled
--------------------------------
1           40
2           80
3          120

Input Validation: Do not accept a negative number for speed and do not accept any value less than 1 for time traveled.

Distance Traveled

The distance a vehicle travels can be calculated as follows:

   distance = speed * time

For example, if a train travels 40 miles per hour for 3 hours, the distance traveled is 120 miles.

Answer 1

Code:

#include<iostream>
using namespace std;
int main(){
   int speed,time,distance,i;
   cout<<"Enter the speed of the vehicle(in miles per hour)? ";
   cin>>speed;
   while(1){
       if(speed<0){
           cout<<"Invalid,speed value need not be negative value"<<endl;
           cout<<"Enter the speed of the vehicle(in miles per hour)? ";
           cin>>speed;
       }
       if(speed>=0){
           break;
       }
   }
   cout<<"Enter how many hours it has traveled? ";
   cin>>time;
   while(1){
       if(time<1){
           cout<<"Invalid,time need not be less than one"<<endl;
           cout<<"Enter how many hours it has traveled? ";
           cin>>time;
       }
       if(time>=1){
           break;
       }
   }
   cout<<endl<<"Hour Distance Traveled"<<endl<<endl;
   cout<<"--------------------------------"<<endl;
   for(i=1;i<=time;i++){
       distance=speed*i;
       cout<<i<<"           "<<distance<<endl;
   }
}

Output: