Need ASAP help with array in C++

[Myna]

I need to write a lottery program that generate 5 non duplicate number between 1-20. Below is my code and it said my [i] is undefined and it is an undeclare identifier. Need help on this asap.

#include <iostream>
#include <stdlib.h>
#include <time.h>
#include <iomanip>

using namespace std;

int main()
{
	srand(time(NULL));

	int lottery[5] = { 0, 0, 0, 0, 0 }, count = 0, rand_lottery;
	bool isdup = false;

	cout << "Your Lottery:" << endl;

	while (count < 5) 
	{
		int rand_lottery, i;
		rand_lottery = rand()%20 +1;
		i =  lottery[5];
		for (int i = 0; i < 5; i++);
		{
				if (lottery[i] == rand_lottery)
				{
					isdup = true;
				}
		}
		if (isdup == false)
		{ 
			lottery[count] = rand_lottery;
			count++;
		}
	}
	for (int i = 0; i < 5; i++);
	{
		cout << lottery[i] << " ";

		return (0);

	}
}

[rjvc]

for (int i = 0; i < 5; i++);

try getting rid of this semi-colon..see if it works. :)