/*------------------------------------------------------------------------------
 * matrix.c: read and print matrix
**----------------------------------------------------------------------------*/

/* Copyright (c) 2009 Peter Bui. All Rights Reserved.
 *
 * Peter Bui <pbui@cse.nd.edu>
 *
**------------------------------------------------------------------------------
 * Includes
**----------------------------------------------------------------------------*/

#include <stdio.h>
#include <stdlib.h>

/*------------------------------------------------------------------------------
 * Type Definitions
**----------------------------------------------------------------------------*/

typedef int** Matrix;

/*------------------------------------------------------------------------------
 * Functions
**----------------------------------------------------------------------------*/

void
read_matrix(Matrix *om, int *rows, int *cols)
{
    Matrix m;
    int r, c;

    scanf("%d %d", rows, cols);

    m = *om = malloc(sizeof(int *) * *rows);

    for (r = 0; r < *rows; r++) {
	m[r] = malloc(sizeof(int) * *cols);
	for (c = 0; c < *cols; c++) 
	    scanf("%d", &m[r][c]);
    }
}

void
write_matrix(Matrix m, int rows, int cols)
{
    int r, c;

    for (r = 0; r < rows; r++) {
	for (c = 0; c < cols; c++)
	    printf("%d ", m[r][c]);
	putchar('\n');
    }
}

void
free_matrix(Matrix m, int rows, int cols)
{
    int r, c;

    if (m) {
	for (r = 0; r < rows; r++) 
	    if (m[r]) free(m[r]);
	free(m);
    }
}

/*------------------------------------------------------------------------------
 * Main Execution
**----------------------------------------------------------------------------*/

int
main(int argc, char* argv[]) 
{
    Matrix m;
    int rows, cols;

    read_matrix(&m, &rows, &cols);
    write_matrix(m, rows, cols);
    free_matrix(m, rows, cols);

    return (EXIT_SUCCESS);
}

/*------------------------------------------------------------------------------
 * vim: sts=4 sw=4 ts=8 ft=c
**----------------------------------------------------------------------------*/