rass

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define BUFLEN 10

typedef struct mRida{
	int *rida;
} mRida;
typedef struct matrix{
	mRida *mRead;
	int max;
	int a;
	int n;
} matrix;

void loeRead(matrix *x, char *fnimi);
void lisaRida(matrix *x, int abi[]);
void arvutamine(matrix *x, char *fonimi);
void vabasta(matrix *x);

int main(void)
{
	matrix x = {NULL, 0, 0, 0};
	loeRead(&x, "sisend.txt");
	arvutamine(&x, "valja.txt");
	vabasta(&x);
	return 0;
}

void loeRead(matrix *x, char *fnimi)
{
	FILE *f = fopen(fnimi, "r");
	int N, i;
	if(f == NULL)
	{
		printf("Faili %s ei saanud avada \n", fnimi);
		exit(0);
	}
	if(fscanf(f, "%d", &N)==1)
	{
		if(N > 0 && N < 11)
		{
			x->n = N;
			x->a++;
		}
		else
		{
			printf("Ruutmaatriks on liiga suur/vaike");
			exit(0);
		}
	}
	int abi[N];
	while(!feof(f))
	{
		for(i = 0; i < x->n;i++)
		{
			fscanf(f, "%d", &abi[i]);
		}
		lisaRida(x, abi);
	}
	fclose(f);
}

void lisaRida(matrix *x, int abi[])
{
	mRida *pAbi = NULL;
	int *rAbi;
	int i;
	if(x->max <= x->a) //pole ruumi lisada
	{
		x->max = (x->max + 2) * 2;
		pAbi = (mRida*)realloc
		(x->mRead, x->max * sizeof(mRida));
		if(abi != NULL){
			x->mRead = pAbi;
		}
	}

	rAbi = malloc(sizeof(int));
	if(abi != NULL)
	{
		x->mRead[x->a].rida= rAbi;
	}

	for(i = 0; i<x->n;i++)
		x->mRead[x->a].rida[i] = abi[i];
	for(i = 0; i<x->n;i++)
		printf(" %3d ", x->mRead[x->a].rida[i]);
	printf("\n");
	x->a++;
}
void arvutamine(matrix *x, char *fonimi)
{
	FILE *fo = fopen(fonimi, "w");
	if(fo == NULL)
	{
		printf("Faili %s ei saanud avada \n", fonimi);
		exit(0);
	}
	int i, j, arv;
	// I  = RIDA
	// J  = VEERG
	for(i=0;i<x->n;i++)
	{
		for(j=0;j<x->n;j++)
			fprintf(fo," %3d ", x->mRead[i+1].rida[j]);
		fprintf(fo, "\n");
	}
	printf("===uus maatriks B===\n");
	fprintf(fo,"===uus maatriks B===\n");
	for(i=0;i<x->n;i++)
	{
		for(j=0;j<x->n;j++)
		{
			arv = (x->mRead[i+1].rida[j] *
			x->mRead[j+1].rida[i]);
			printf(" %3d ", arv);
			fprintf(fo," %3d ", arv);
		}
		printf("\n");
		fprintf(fo, "\n");
	}
	fclose(fo);
}
void vabasta(matrix *x)
{
	int i;
	for(i=0; i < (x->n); i++)
    {
    	free((x->mRead+i)->(rida + j));
	}
	free(x->mRead);
}