#include<iostream>
using namespace std;
int main()
{
	/* Part 1 - printin the sum of the first 200 even numbers.
 	 * Start from 0. You can have one variable for the sum, one for the
 	 * current number being added to the sum and another for the counter.*/

	int sum=0;
	int count =1;
	int num =0;
	while(count <=200)
	{
		sum = sum + num;
		num = num + 2; //next even number
		count = count + 1;
	}
	cout << "The sum of the first 200 even numbers is : "<<sum<<endl;

	//It is also possible to combine the counter and the current number.
	
	/* Part 2 - Find the nth power of x. Here, we read in 2 numbers.
 	 * Then, in a modification of the factorial program, we accumulate
 	 * multiplying the number by itself. */

	double ans = 1; // Initialize with 1 since we are multiplying
	double x;
	int n;
	cout<<"Enter x: ";
	cin>> x;
	cout<<"Enter the exponent: ";
	cin>>n;

	count = 1; //reusing the counter.
	while(count <= n)
	{
		ans=ans*x;
		count++;
	}
	cout<<x<<"^"<<n<<" = "<<ans<<endl;

	return 0;
}