Workshop8-Problem4.c

#include <stdio.h>

void fileToArray(char* fname, int *a, int *pn)
{
	FILE* f = fopen(fname, "r");
	fscanf(f, "%d", pn);
	int i;
	for (i = 0; i <= *pn; i++)
		fscanf(f, "%d", &a[i]);
	fclose(f);
}

void asc_sort(int* a, int n)
{
	int i, j, t;
	for (i = 0; i < n-1; i++)
		for (j = n-1; j > i; j--)
			if (a[j] < a[j-1])
			{
				t = a[j];
				a[j] = a[j-1];
				a[j-1] = t;
			}
}

int print(int* a, int n)
{
	int i;
	for (i = 0; i < n; i++)
		printf("%d ", a[i]);
}

int printToFile(char* fname, int* a, int n)
{
	FILE* f = fopen(fname, "w");
	fprintf(f, "%d ", n);
	int i;
	for (i = 0; i < n; i++)
		fprintf(f, "%d ", a[i]);
	fclose(f);
}

int main()
{
	char infName[] = "array1.txt";
	char outfName[] = "array2.txt";
	int a[200];
	int n = 0;
	fileToArray(infName, a, &n);
	asc_sort(a, n);
	print(a, n);
	printToFile(outfName, a, n);
	getchar();
	return 0;
}