Programming in C

Functions and Arrays 145

Program 8.12 Sorting an Array of Integers into Ascending Order

// Program to sort an array of integers into ascending order

#include <stdio.h>

void sort (int a[], int n)
{
int i, j, temp;

for ( i = 0; i < n - 1; ++i )
for ( j = i + 1; j < n; ++j )
if ( a[i] > a[j] ) {
temp = a[i];
a[i] = a[j];
a[j] = temp;
}
}

int main (void)
{
int i;
int array[16] = { 34, -5, 6, 0, 12, 100, 56, 22,
44, -3, -9, 12, 17, 22, 6, 11 };
void sort (int a[], int n);

printf ("The array before the sort:\n");

for ( i = 0; i < 16; ++i )

printf ("%i ", array[i]);

sort (array, 16);

printf ("\n\nThe array after the sort:\n");

for ( i = 0; i < 16; ++i )

printf ("%i ", array[i]);

printf ("\n");

return 0;
}