Solution to the Manhattan Island Problem

Solution to Programming Assignment

The Manhattan Island Problem

Program: Note that as the years move forward the principal gets really large and float no longer computes accurately - should be double.

/The Manhattan Island Problem

/* This program displays the value of the proposed investment of $24 in 1626, at an interest rate of .04, every 20 years. */

#include <iostream>

#include <iomanip>

using namespace std;

void main() {

float p, pzero, rate;

int i, year;

pzero = 24;

p = pzero;

rate = .04;

cout << setiosflags(ios::fixed | ios::showpoint)

<< setprecision (2);

cout << setw(20) << "YEAR" << setw(20) << "AMOUNT" << endl;

cout << " ------------------------------------------------------"

<< endl;

for (year=1626; year <=2006; year+=20) {

cout << setw(20) << year << setw(20) << p << endl;

for (i=1; i<=20; i++)

p = p + p*rate;

}

return;

Output: