This program is designed to analyze the growth of two cities. Each city has a st

Question

This program is designed to analyze the growth of two cities. Each city has a starting population and annual growth rate. The smaller city has the larger growth rate (required). Show the comparative populations of each city year by year until the smaller city has grown larger than the bigger city.

This what I have so far but what happens if the user inputs a larger % on the bigger city?? How do I prevent that?

int main()
{
int popA,popB;

double rateA,rateB;

int years=0;

cout<<"Enter population of Pena: ";
cin>>popA;

cout<<"Enter growth rate of Pena: ";
cin>>rateA;

cout<<"Enter population of Jayleighville: ";
cin>>popB;

cout<<"Enter growth rate of Jayleighville: ";
cin>>rateB;

rateA/=100.;
rateB/=100.;
cout<<"year Pena Jayleighville ";

while(popA<popB)

{popA=(int)(popA*rateA+popA);
popB=(int)(popB*rateB+popB);
years++;

cout<<years<<" "<<popA<<" "<<popB<<endl;
}

system("pause");
return 0;
}

Explanation / Answer

You can use if else for specific ranges

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