// basecode.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "stdio.h"
#include "fstream.h"

const MAX_SIZE = 50;

void PrintMatrix(double matrix[][MAX_SIZE + 1], int numCol)
//This function can be used to print the matrix
{
	for (int i=0; i<numCol; i++)
	{
		for (int j=0; j<=numCol; j++)
			printf("%lf ", matrix[i][j]);
		printf("\n");
	}
}

int main(void)
{
	int matrix_size;                                      //  Number of rows in matrix
	double matrix[MAX_SIZE][MAX_SIZE + 1];				//  Two Dimensional Array to store data
	int i = 0, j = 0;
	FILE *in_file;                                        //  File pointer
	char file_name[30];
	printf("\nDo you want to input data from a file? ");
	char ch=getc(stdin);
	if ((ch=='y') || (ch == 'Y'))
   	{
		printf("\nEnter the file name? ");
		scanf("%s",file_name);
		in_file=fopen(file_name,"r");                      //  open file_name to read data only
		if (in_file==NULL)                                 // if file could not be open
		{
			printf("\nError opening file\n");
			printf("Press enter to end the program.");
			fflush(stdin);
			getc(stdin);
			return -1;
		}
		fscanf(in_file,"%d",&matrix_size);                 //  scan in rows of matrix
		while ((!feof(in_file)) && (i < matrix_size) && (j <= matrix_size))                              // loop until the end of file
		{
			fscanf(in_file, "%lf", &matrix[i][j]);
			if (j==matrix_size)                             // if j equals number of rows then move to next row
			{
				j=0;
				i++;
            }
			else															//else move to next column
				j++;
		}

		if (i!=matrix_size||j!=0)                         //if matrix doesn't have the proper dimensions
		{
			printf("\nError in matrix data\n");
			printf("Press any key to end the program.");
			fflush(stdin);
			getc(stdin);
			return -1;
		}
		
		fclose(in_file);                                 //close file
	}
	else
   	{
		printf("\nInput the number of rows of the matrix? ");
		scanf("%d",&matrix_size);                       //input number or rows
		while(matrix_size<1)                            //if number of rows is less than 1
		{
			printf("\nMatrix size must be larger than zero.  Input another number.");
			scanf("%lf",&matrix_size);
		}
		for (i=0;i<matrix_size;i++)
		{
			printf("\nEnter row %d. ",i+1);
			for (j=0;j<=matrix_size;j++)
			{
				scanf("%lf", &matrix[i][j]);                //scan in each row
            }
		}
	}

	/***************** Insert your code here *************************/

	PrintMatrix(matrix,matrix_size);

	return 0;
}