//
//??main.c
//??equal100
//
//??Created?by?Tong?Tingting?on?13-12-20.
//??Copyright?（c）?2013年?Tong?Tingting.?All?rights?reserved.
//

#include?
#include?
#include?

char?sarr[9]={‘1‘‘2‘‘3‘‘4‘‘5‘‘6‘‘7‘‘8‘‘9‘};
#define?Line?8???	//數字中間的間隔數總共可以添加3種運算符
#define?MAXC?3???	//總共可以添加3種運算符

void?MatCombin（char?（*）[3]int?char?*）;

char?strout[Line];??//9個數字之間運算符的排列組合
char?mixx[2*Line+1];??//數字和運算符交叉結合后的字符串


int?main?（）{
????int?i;
????char?mat[Line][MAXC]?={“+-?““+-?““+-?““+-?““+-?““+-?““+-?““+-?“};??//每個間隔可以選取的運算符
????MatCombin（mat?Line?strout）;
????void?mix（char?*achar?*b）;
????void?cal（char?*strm）;
????exit?（0）;
}

//遞歸地進行組合對8個間隔位置上的運算符進行枚舉
void?MatCombin（char（*p）[MAXC]int?nchar?*q）{
????int?i;
????//這個p對應最后一行，考慮輸出
????if?（n==1）?{
????????for?（i=0;?i????????????if（!p[0][i]）?return;
????????????*q?=?p[0][i];?//最后一個字符寫入到strout
????????????mix（sarr?strout）;
????????}
????????
????}
????//不是最后一行，繼續細分
????else?{
????????for?（i=0;?i????????????if（!p[0][i]）?return;
????????????*q?=?p[0][i];?//寫入一個字符
????????????MatCombin（p+1n-1q+1）;
????????}
????}
????
????
????return?;
}



void?mix（char?*achar?*b）??//數字和運算符交叉連接
{

????int?ilenth=0;
????for?（i=0;?i<9;?i++）?{