试题：用指针实现两个数组分别将数字排序，之后再有序放入第三个数组中

#include 
    
     #define  N 10#define DEBUG  1void sort_data(int * const head,const int nu);void show_data(int *const head,const int nu);int main(){	int a[N] = {0};	int b[N] = {0};	int c[2 * N] = {0};	int *pa = a,		*pb = b,		*pc = c;	int an = 0,		bn = 0,		i = 1,		n  = 0;/*****   get data ************/	puts("intput your number:");	do	{		while(!scanf("%d",pa))			getchar();		if(*pa == 0)			break;		else			pa ++;	}while(pa - a < N);	an = pa - a;	do	{		while(!scanf("%d",pb))			getchar();		if(*pb == 0)			break;		else			pb ++;	}while(pb - b < N );	bn = pb - b;/*******  sort data  ***************/	sort_data(a,an);	sort_data(b,bn);	pa = a;	pb = b;	for(i = 0; i < an + bn; i ++)	{		if(*pa > *pb && pb - b < bn)			*pc ++ = *pb ++;		else if(*pa <= *pb && pa -a < an)			*pc ++ = *pa ++;	}	while(pa - a < an)		*pc++ = *pa++;	while(pb - b < bn)		*pc++ = *pb++;	show_data(c,an + bn);	return 0;}void sort_data(int * const head,const int nu){	int i,j;	for(i = 0; i < nu; i ++)	{		for(j = 0; j < nu - i - 1; j ++)		{			if(head[j] > head[j + 1])			{				head[j] ^= head[j + 1];				head[j + 1] ^= head[j];				head[j] ^= head[j + 1];			}		}	}}void show_data(int *const head,const int nu){	int i;	for(i = 0; i < nu; i ++)		printf("%d\t",head[i]);	putchar(10);}