Write a program that will predict the size of a population of organisms. the program // should ask the user for the starting number of organisms, their average daily population // increase (as a percentage of the current population), and the number of days they will // multiply. a loop should display the size of the population for each day.

Following are the program in the C++ Programming Language:

#include <iostream>

using namespace std;

int main() {

 float starting, average;

 int num;

 std::cout <<"Enter starting number of the organisms: ";

 while(!(std::cin >> starting)|| starting < 2){

   std::cout<<"starting number must be greater than 2\n";

   std::cout <<"Enter starting number of the organisms: ";

   std::cin.clear();

   std::cin.ignore(123,'\n');

 }

 std::cout <<"Enter the average of daily population is increase %: ";

 while(!(std::cin >> average)|| average < 0){

   std::cout<<"Average must be greater than 0\n Enter average";

   std::cin.clear();

   std::cin.ignore(123,'\n');

 }

   average *= .01;

 std::cout <<"Enter the number of days: ";

 while(!(std::cin >> num)|| num < 1){

   std::cout<<"Number of days no be less than 1\n" <<"Enterthe number of days\n";

   std::cin.clear();

   std::cin.ignore(123,'\n');

 }

 for(int i=0; i<num; i++){

   std::cout<<"population size of day"<<(i+1);

   std::cout<<": "<<starting<<std::endl;

   starting +=(starting*average);

 }

 return 0;

}

Output:

Enter starting number of the organisms: 4

Enter the average of daily population is increase %: 5

Enter the number of days: 4

population size of day1: 4

population size of day2: 4.2

population size of day3: 4.41

population size of day4: 4.6305

Explanation:

Here, we define header file "<iostream>" and namespace "std".

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