【程序填空】题目：输入3个数a,b,c，按大小顺序输出。要求：请将程序在VC++6.0等环境中编辑运行，并将填空后的程序及运行结果截图上传。----------------------------------*/main(){int n1,n2,n3;int *pointer1,*pointer2,*pointer3;printf("please input 3 number:n1,n2,n3:");scanf("%d,%d,%d",&n1,&n2,&n3);pointer1=&n1;pointer2=&n2;pointer3=&n3;/***********SPACE***********/if(【?】) swap(pointer1,pointer2);/***********SPACE***********/if(【?】) swap(pointer1,pointer3);/***********SPACE***********/if(【?】) swap(pointer2,pointer3);printf("the sorted numbers are:%d,%d,%d\n",n1,n2,n3);}/***********SPACE***********/swap(【?】){int p;p=*p1;*p1=*p2;*p2=p;}