myshuffle.c

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <math.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <float.h>
#include <setjmp.h>
#include <signal.h>
int matrix[]={0,1,2,3,4,5,6,7,8};
void seedrand()
{
	static int i=1;
	if (i)
		srand(time(NULL));
	i=0;
}
void swap(int *p, int *q)
{
	int temp;
	temp=*p;
	*p=*q;
	*q=temp;
}
void shuffle(int *data, int low, int high)
{
	int j;
	seedrand();
	if (low>=high)
		return ;
	j=rand()%(high-low) + low;
	swap(data+low, data+j);
	shuffle(data, low+1, j);
	shuffle(data, j+1, high);
	return ;
}
int main(int argc, char const *argv[])
{
	return 0;
}