sortbig.c

来自「C.Game.Programming.For.Dummies.原码」· C语言 代码 · 共 65 行

#include <stdlib.h>
#include <time.h>	//for the seedrnd() function
#include <stdio.h>

#define SIZE 10000    //size of the array

void sort(int *array,int size);
int rnd(int range);
void seedrnd(void);

void main()
{
    int r[SIZE];
    int i;

    printf("Here is the array unsorted:\n");

	seedrnd();		//seed the randomizer
    for(i=0;i<SIZE;i++)
    {
        r[i] = rnd(1000)+1;
        printf("%i\t",r[i]);
    }

    printf("\nPress Enter to see the sorted array:");
    getchar();
    printf("\n");

    sort(r,SIZE);

    for(i=0;i<SIZE;i++)
        printf("%i\t",r[i]);

}

void sort(int *array,int size)
{
    int a,b,temp;

    for(a=0;a<size-1;a++)
        for(b=a+1;b<size;b++)
            if(array[a] > array[b])
            {
                temp=array[b];
                array[b] = array[a];
                array[a] = temp;
            }
}

int rnd(int range)
{
	int r;

	r=rand()%range;		//spit up random num.
	return(r);
}

/* Seed the randomizer */

void seedrnd(void)
{
	srand((unsigned)time(NULL));
}