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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	float startingNum;
  6. 	int numOfDays;
  7. 	float dailyRate;
  8. 	float dailyPct;
  9. 	float increaseAmt;
  10.  
  11. 	cout << "Enter the starting number of poplation\n";
  12. 	cin >> startingNum;
  13.  
  14. 	while (startingNum < 2)
  15. 	{
  16. 		cout << "Only enter number that is 2 or more.\n";
  17. 		cin >> startingNum;
  18. 	}
  19.  
  20. 	cout << "Enter the daily rate for the multiplication. Write 10 if its 10%.\n";
  21. 	cin >> dailyRate;
  22.  
  23. 	while (dailyRate < 0)
  24. 	{
  25. 		cout << "Only enter postive number\n";
  26. 		cin >> dailyRate;
  27. 	}
  28.  
  29. 	cout << "Enter the number of days\n";
  30. 	cin >> numOfDays;
  31.  
  32. 	while (numOfDays < 1)
  33. 	{
  34. 		cout << "Only enter number 1 or that is greater than 1.\n";
  35. 		cin >> numOfDays;
  36. 	}
  37.  
  38. 	dailyPct = dailyRate/100;
  39.  
  40. 	cout << "Size of population for day 1 :" << startingNum << endl;
  41.  
  42. 	for (int i = 2 ; i <= numOfDays ; i++)
  43. 	{
  44. 		increaseAmt = dailyPct * startingNum;
  45. 		startingNum += increaseAmt;
  46.  
  47. 		cout << "Size of population for day " << i << " :";
  48. 		cout << startingNum << endl;
  49.  
  50. 	}
  51.  
  52. 	return 0;
  53. }
Success #stdin #stdout 0.01s 5272KB
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Enter the starting number of poplation
Enter the daily rate for the multiplication. Write 10 if its 10%.
Enter the number of days
Size of population for day 1 :10
Size of population for day 2 :30
Size of population for day 3 :90
Size of population for day 4 :270
https://ideone.com/QpXWIu
Chapter 5 - Population
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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