> #include <iostream>
using namespace std;


  int main() {


   int k = 20; // number of years to calculate for
   int pn = 10; // the population of animals for the first year
   double g = 275; // rate of growth
   g = g/100.00;
   double h = 20; // rate of animal death/animals leaving population
   h = h/100.00;
   int M = 100; // carrying capacity of the ecosystem



/*
Implementing Verhulst's Formula in C++
*/



 int i;
 int pop;
 for (i = 1; i <= k ; i++)
 {
 pop = (((1 + (g - h)) * pn) - g*(pn*pn)/M) + .5; // the equation
 pn = pop; // this takes the new value of pop and inserts it as pn, to be looped until i <= k
 cout << i << " " << pop << endl;
 }


 return 0;

}

1 35
2 96
3 88
4 102
5 75
6 116
7 37
8 100
9 80
10 112

1 25
2 70
3 120
4 33
5 94
6 90
7 98
8 86
9 92
10 70

int i;
 int pop;
 for (i = 1; i <= k ; i++)
 {
 pop = (((1 + (g - h)) * pn) - g*(pn*pn)/M) + .5; // the equation
 pn = pop; // this takes the new value of pop and inserts it as pn, to be looped until i <= k
 cout << i << " " << pop << endl;
 }