#include <stdio.h>
#include <string.h>

//Global Structure
struct Team {
	int played;
	int goalsfor;
	int goalsagainst;
	int points;
};

int main()
{

	//Structures
	struct Team teams[7] = { 0 };

	//Variables
	int Home, Away, Homegoals, Awaygoals;
	int i;
	char choice;

	//Team input
	do{
	do {
		printf("Home team number: ");
		scanf("%i", &Home);

		printf("Away team number: ");
		scanf("%i", &Away);
		if (Home == Away)
		{
			printf("Please enter two different teams.\n");
		}
	} while (Home == Away);

	//Home Team
	printf("Enter goals scored by Team %d: ", Home);
	scanf_s("%i", &Homegoals);
	while (Homegoals < 0) { //Loops till positive number is input
		printf("Enter a positive number: ");
		scanf_s("%i", &Homegoals);
	}
	teams[Home - 1].goalsfor += Homegoals; //Home Goals Adder
	teams[Away - 1].goalsagainst += Homegoals; //Away Goals against adder
	teams[Home-1].played += 1; //Home Counter

	//Away Team
	printf("Enter goals scored by Team %d: ", Away);
	scanf_s("%d", &Awaygoals);
	while (Awaygoals < 0) { //Loops till positive number is input
		printf("Enter a positive number: ");
		scanf_s("%d", &Awaygoals);
	}
	teams[Away - 1].goalsfor += Awaygoals; //Away Goals Adder
	teams[Home - 1].goalsagainst += Awaygoals; //Home Goals against adder
	teams[Away-1].played += 1; //Away Counter

	//Points
	if (teams[Home - 1].goalsfor < teams[Away - 1].goalsfor) { //Home Wins
		teams[Away - 1].points = teams[Away - 1].points + 3;
	}
	else if (teams[Home - 1].goalsfor == teams[Away - 1].goalsfor) { //Draw
		teams[Home - 1].points = teams[Home - 1].points + 1;
		teams[Away - 1].points = teams[Away - 1].points + 1;
	}
	else if (teams[Home - 1].goalsfor > teams[Away - 1].goalsfor) { // Away Wins
		teams[Home - 1].points = teams[Home - 1].points + 3;
	}

	//Table
	printf("Team		Played		For		Against		Points\n");
	for (i = 0; i < 6; i++) {
		printf("Team %i		%i		%i		%i		%i\n", i+1,teams[i].played,teams[i].goalsfor,teams[i].goalsagainst,teams[i].points);
	}

	//Exit Sequence
	do {
		printf("Exit? (Y/N): ");
		scanf_s(" %c", &choice);
		if (choice == 'y' || choice == 'Y') { //Ends Program
			printf("\nProgram ending\n\n");
			break;
		}
		else if (choice == 'n' || choice == 'N') { //Continues Program
			break;
		}
		else if (choice != 'y' || choice != 'Y' || choice != 'n' || choice != 'N') { //Error Message
			printf("Please enter Y/N\n");
		}
	} while (choice != 'y' || choice != 'Y' || choice != 'n' || choice != 'N');
} while (choice == 'n' || choice == 'N');

	return 0;
}