#define M 30//源表長
#define N  50//哈希表長
#define p 47//除數，為質數,且不能超過五十，初次散列的表達式：d=L[i].shuzhi%p;
             //再次散列的表達式：d=(d-10+(7*d))%p;（）
#define K 1000
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<string.h>
#include<malloc.h>
#include<dos.h>
/*typedef struct {
    char * a;
	int length;
	int size;
}list;*/
typedef struct{
char *name;
char *pinyin;
int shuzhi;
}yuanbiao;

typedef struct{
//char *pinyin;
	char *name;//這里的名字和源表中一樣
	char *pinyin;
	int shuzhi;
	int dizhi;//哈希元素的存放地址
	int biaoji;//
	int sum;//標記計算的次數
}hshlst;


typedef struct{
    hshlst *H;
	int length;
	int size;
}hashlist;

hashlist init_hashlist(){
    hashlist T;
	//char a[20];
	//char b[20];
	T.H=(hshlst *)malloc(N*sizeof(hshlst));
	//T.H->name=a;
	//T.H->pinyin=b;
	T.length=0;
	T.size=N;
	return T;
}

//hshlst H[N];//還要記得把H的大小做成可變的！


 Init_list(yuanbiao L[]){
    printf("init\n");
	L[0].name="陳紅霞";L[0].pinyin="chenhongxia";
    L[1].name="王偉";L[1].pinyin="wangwei";
    L[2].name="胡軍輕";L[2].pinyin="hujunqing";
    L[3].name="張海霞";L[3].pinyin="zhanghaixia";
    L[4].name="咸正海";L[4].pinyin="xianhaizheng";
    L[5].name="于蔡琰";L[5].pinyin="yucaiyan";
    L[6].name="郭興燕";L[6].pinyin="guoxingyan";
    L[7].name="劉麗麗";L[7].pinyin="liulili";
    L[8].name="唐駿龍";L[8].pinyin="tangjunlong";
    L[9].name="高睿哲";L[9].pinyin="gaoruizhe";
    L[10].name="唐建雷";L[10].pinyin="tangjianlei";
    L[11].name="王雪域";L[11].pinyin="wangxueyu";
    L[12].name="李蒙山";L[12].pinyin="limengshan";
    L[13].name="任之文";L[13].pinyin="renzhiwen";
    L[15].name="高天驕";L[15].pinyin="gaotianjiao";
    L[14].name="劉通明";L[14].pinyin="liutongming";
    L[16].name="張秀美";L[16].pinyin="zhanxiumei";
    L[17].name="吳瑩瑩";L[17].pinyin="wuyinyyiny";
    L[18].name="劉曉強";L[18].pinyin="liuxiangqiang";
    L[19].name="喬守星";L[19].pinyin="qiaoshouxing";
    L[20].name="于后康";L[20].pinyin="yuhoukang";
    L[21].name="朱麗娟";L[21].pinyin="zhulijuan";
    L[22].name="付吉亮";L[22].pinyin="fujiliang";
    L[23].name="李謙誠";L[23].pinyin="liqiancheng";
    L[24].name="吳俊杰";L[24].pinyin="wujunjie";
    L[25].name="鄭程博";L[25].pinyin="zhengchengbo";
    L[26].name="騰立濤";L[26].pinyin="tenglitao";
    L[27].name="孔偉政";L[27].pinyin="kongweizheng";
    L[28].name="莊佳";L[28].pinyin="zhuangjia";
    L[29].name="王迪";L[29].pinyin="wangdi";
    //L[30].name="趙棟棟";L[30].pinyin="zhangdong";//多了一個，轉化時會使程序非正常終止
    //return L[M];//
	printf("init over\n");

}
//****************拼音轉化為數字********************//
int transform(char *a){	
	int t,i;
	char *b;
	b=a;
    t=*b;
	for(i=0;*a!='\0'&& i<strlen(a);a+=4,i+=4)//因為a的數組大小是20，如果不判斷是否結束的話會出現負值
	//while(*a!='\0')
		//a++;		
	   t+=(*a); 
	//printf("%d \n",t);
	return t;
}

/*****************構建哈希表******************/
create_hash(yuanbiao L[],hshlst H[]){
	int i,j;
    int d,t;
	printf("begin create\n");
	for(j=0;j<N;j++){//置空哈希表
		H[j].name="";
		H[j].shuzhi=0;
        H[j].pinyin="";
	    H[j].dizhi=0;
		H[j].biaoji=0;
		H[j].sum=0;	
		
	}
    printf("create nil hashist over\n");//////
	/*printf("print\n");
	printf("%d\n",T.H[0].biaoji);*/
	/*for(i=0;i<M;i++)
		printf("%s ",L[i].name);
	printf("\n");*/

	for(i=0;i<M;i++){		
		d=L[i].shuzhi%p;//
		if(!H[d].biaoji){
			H[d].name=L[i].name;
			//printf("%s ",H[d].name);
			H[d].pinyin =L[i].pinyin;
			H[d].shuzhi=L[i].shuzhi;
			H[d].dizhi=d;
			H[d].biaoji =1;
			H[d].sum++;
			
		}//if
		else{
			t=1;
			while(H[d].biaoji){
			   d=(d-10+(7*d))%p;//這個地方剛開始寫錯了，寫成了-500，結果到后面都不打印了！??！
			   t++;
			}
			H[d].name=L[i].name;
			
			//printf("%s ",H[d].name);
			H[d].pinyin =L[i].pinyin;
			H[d].shuzhi=L[i].shuzhi;
			H[d].dizhi=d;
			H[d].biaoji =1;
			H[d].sum=t;
			
		}//else*/
	}//for
	printf("end create\n");
}//create

/*insert(hshlst H[],char *a,int d){
	char temp[20];
	char *b;
	b=temp;

    printf("please input his(or her) chinese name:");
	scanf("%s",b);
	printf("\n");
	H[d].biaoji =1;
	H[d].dizhi =d;
	H[d].name =b;

}//insert*/

insert(hshlst H[],int flag){
	int d,t,s=1;
	char b[100],a[100];//b數組很值得研究
	//yuanbiao L[M];
	char *temp;

	if(flag)goto begin;
	printf("input the person's pinyin name\n");
	scanf("%s",b);
    temp=(char *)malloc((strlen(b)+1)*sizeof(char));
	strcpy(temp,b);
	t=transform(temp);
	printf("%d\n",t);
	d=t%p;
	while(H[d].biaoji){
	    if(!strcmp(H[d].pinyin,b)){
		    printf("the data has exist!\n");
		    goto end;
		}
		else {
			d=(d-10+(7*d))%p;
			s++;
		}
	}			
begin:	
	//H[d].pinyin =b;
    H[d].pinyin=(char *)malloc((strlen(b)+1)*sizeof(char));
	strcpy(H[d].pinyin,b);
	H[d].shuzhi=t;
	H[d].dizhi=d;
	H[d].biaoji =1;
	H[d].sum=s;
	printf("please input the person's chinese name:\n");
	scanf("%s",a);
    H[d].name=a;
	//printf("%s\n",H[d].name);

	
end:return d;
}


int search(hshlst H[],char *a){
	int t,d;
	char str[20];
	//char m;
	//a=str;	
	
	t=transform(a);
	
	//printf("t=%d\n",t);getch();//t變成了負數？？？
	d=t%p;
	
	while(H[d].biaoji){
		if(!(strcmp(a,H[d].pinyin))){
			//printf("the person you want to search has found,his(or her) chinese name is:%s\n",H[d].name);
			return d;
		}
		else
			d=(d-10+(7*d))%p;		
	}	
	//printf("no match!\n");
	return K;

}//search*/

showhash(hshlst H[]){
	int i,j=0,t;
    for(i=0;i<N;i++)
		if(H[i].pinyin!=""){
			j++;
			t=j%5;			
		    printf("%s ",H[i].pinyin);
			if(!t) printf("\n");			
		}

	printf("\n");
    //j=0;
	/*for(i=0;i<N;i++)
		if(H[i].dizhi){
			t=j%5;			
		    printf("%d ",H[i].dizhi);
			if(!t) printf("\n");
			j++;
		}*/

	return j;
}


deletehash(hshlst H[]){
   char a[20];
   int j;
   printf("please input the pinyin name you want to delete\n");
   scanf("%s",a);
   j=search(H,a);
   //system("cls");
   if(j==K)printf("can't find the person you have input!\n");
   else{
	   
	   H[j].name="";
		H[j].shuzhi=0;
        H[j].pinyin="";
	    H[j].dizhi=0;
		H[j].biaoji=0;
		H[j].sum=0;	
   }
}




void main(){
    int i,d,j;
	char t[20];
	yuanbiao L[M];	
	hashlist T;
	char a[20];
	T=init_hashlist();	
    Init_list(L);
	printf("trans\n");
	for(i=0;i<M;i++)//因為transform函數要被兩次調用到，故用此寫法
	    L[i].shuzhi=transform(L[i].pinyin);
	printf("trans over\n");
	//以下是調試用句1,顯示轉化后的數字
	//***********************
	/*printf("begin\n");
	for(i=0;i<M;i++)
		printf("%d ",L[i].shuzhi);
	printf("end\n");*/
	//*****************調試用句1,顯示拼音的轉化值

    //**********創建哈希表

	create_hash(L,T.H);T.length =N;
	printf("\n");
	//system("cls");//清屏

    //**********創建哈希表
     
	//以下調試語句二，顯示哈希表中的姓名
	//***************//
	/*printf("show\n");
	for(i=0;i<N;i++)
		if(T.H[i].name!="")
		   printf("%s ",T.H[i].name);
		printf("\n");*/
	//***************調試語句二，顯示哈希表中的姓名**//
loop:printf("------哈希表查找--------\n");
	 printf("please choose one number\n");
	 
	 printf("1.show the hashlist\n");
	 printf("2.search one name from the hashlist\n");
	 printf("3.insert into one data\n");
	 printf("4.delete one data\n");
	 printf("5.exit \n");
	 scanf("%s",t);
	 i=atoi(t);
	 if(i==5){printf("thank you ,bye bye\n");exit(1);}
	 if(i==2){
		 printf("please input the name you want to search:\n");
	         scanf("%s",a);
		 j=search(T.H,a);
		 if(j==K) printf("no match!\n");
		 else
			 printf("the person you want to search has found,his(or her) chinese name is:%s\n",T.H[j].name);

		 goto loop;
	 }
     if(i==1){showhash(T.H);goto loop;}
	 if(i==3){
		 //printf("input the pinyin\n");
		 //scanf("%s",a);
		 d=insert(T.H,0);
		 printf("%d\n",T.H[d].dizhi);
		 goto loop;
	 }
	 if(i==4) {deletehash(T.H);goto loop;}
	 printf("input error!please input again.\n");goto loop;
	
	
}