散列表(C版)
可以直接编译通过，可以试一下....
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <ctype.h>
5
6
7 #define N 30
8 #define L 38
9 #define P 37
10
11
12 typedef struct
13 {
14 char *name;
15 char *py;
16 int k;
17 }old;
18 old oldlist[N];
19
20 typedef struct
21 {
22 char *name;
23 char *py;
24 int k;
25 int b;
26 }hx;
27 hx hlist[L];
28
29 void InputOldlist()
30 {
31 int i,s=0,r;
32 /*for(i=1;i<=N;i++){
33 oldlist[i-1].name=(char*)malloc(sizeof(char)*20);
34 printf("请输入人名:");
35 gets(oldlist[i-1].name);
36 oldlist[i-1].py=(char*)malloc(sizeof(char)*20);
37 printf("请输入拼音:");
38 gets(oldlist[i-1].py);
39 }*/
40 oldlist[0].name="栾雪峰"; oldlist[0].py="luan xue feng";
41 oldlist[1].name="刘翔"; oldlist[1].py="liu xiang";
42 oldlist[2].name="马三立"; oldlist[2].py="ma san li";
43 oldlist[3].name="李开复"; oldlist[3].py="li kai fu";
44 oldlist[4].name="李彦宏"; oldlist[4].py="li yan hong";
45 oldlist[5].name="王冰杰"; oldlist[5].py="wang bin jie";
46 oldlist[6].name="孟茂昌"; oldlist[6].py="meng mao chang";
47 oldlist[7].name="蒋睿杰"; oldlist[7].py="jiang rui jie";
48 oldlist[8].name="嫦娥"; oldlist[8].py="chang er";
49 oldlist[9].name="孙悟空"; oldlist[9].py="sun wu kong";
50 oldlist[10].name="猪八戒"; oldlist[10].py="zhu ba jie";
51 oldlist[11].name="徐琛"; oldlist[11].py="xu chen";
52 oldlist[12].name="唐僧"; oldlist[12].py="tang seng";
53 oldlist[13].name="周星驰"; oldlist[13].py="zhou xing chi";
54 oldlist[14].name="董寸瑞"; oldlist[14].py="dong cun rui";
55 oldlist[15].name="黄继光"; oldlist[15].py="huang ji guang";
56 oldlist[16].name="金庸"; oldlist[16].py="jin rong";
57 oldlist[17].name="杨过"; oldlist[17].py="yang guo";
58 oldlist[18].name="小龙女"; oldlist[18].py="xiao long nv";
59 oldlist[19].name="郭大侠"; oldlist[19].py="guo da xia";
60 oldlist[20].name="黄蓉"; oldlist[20].py="huang rong";
61 oldlist[21].name="老师"; oldlist[21].py="lao shi";
62 oldlist[22].name="学生"; oldlist[22].py="xue sheng";
63 oldlist[23].name="小平同志"; oldlist[23].py="xiao ping tong zhi";
64 oldlist[24].name="泽民"; oldlist[24].py="ze min";
65 oldlist[25].name="圣诞老人"; oldlist[25].py="sheng dan lao ren";
66 oldlist[26].name="朱德庸"; oldlist[26].py="zhu de yong";
67 oldlist[27].name="阿扁"; oldlist[27].py="a bian";
68 oldlist[28].name="连战"; oldlist[28].py="lian zhan";
69 oldlist[29].name="幸福"; oldlist[29].py="xing fu";
70
71 for (i=0;i<N;i++)
72 {
73 for(s=0,r=0;oldlist[i].py[r]!='\0';r++)
74 {
75 s=toascii(oldlist[i].py[r])+s;
76 }
77 oldlist[i].k=s;
78 }
79 }
80
81 void hash()
82 {
83 int i,adr,d;
84 float average,sum=0;
85 for (i=0;i<L;i++)
86 {
87 hlist[i].name="";
88 hlist[i].py="";
89 hlist[i].k=0;
90 hlist[i].b=0;
91 }
92
93 for (i=0;i<N;i++)
94 {
95 adr=(oldlist[i].k)%P;
96 d=adr;
97 if(hlist[adr].b==0)
98 {
99 hlist[adr].k=oldlist[i].k;
100 hlist[adr].name=oldlist[i].name;
101 hlist[adr].py=oldlist[i].py;
102 hlist[adr].b=1;
103 sum=sum+1;
104 }
105 else
106 {
107 do
108 {
109 d=(d+adr%10+1)%P;
110 sum=sum+1;
111 }while (hlist[d].b!=0);
112 hlist[d].k=oldlist[i].k;
113 hlist[d].name=oldlist[i].name;
114 hlist[d].py=oldlist[i].py;
115 hlist[d].b=1;
116 }
117 }
118 average=sum/30;
119 printf("平均查找长度为:%f\n",average);
120 if(average>2)
121 hash();
122 }
123
124
125 void findlist()
126 {
127 char c[20];
128 int i=0,d,g,adr,s=0;
129 printf("请输入你要查找的人的拼音:\n");
130 getchar();
131 gets(c);
132
133 for(i=0;c[i]!='\0';i++)
134 {
135 s=toascii(c[i])+s;
136 }
137 adr=s%P;
138 d=adr;
139 if(strcmp(hlist[adr].py,c)==0)
140 {
141 printf("姓名:%s 拼音:%s 哈希表中存储位置:%d\n",hlist[adr].name,hlist[adr].py,adr);
142 }
143 else if(hlist[adr].b==0)
144 {
145 printf("哈希表中无记录!\n");
146 }
147 else
148 {
149 g=0;
150 for (i=0;g==0;i++)
151 {
152 d=(d+adr%10+1)%P;
153 if(hlist[d].b==0)
154 {
155 printf("哈希表中无记录!\n");
156 g=1;
157 }
158 if(strcmp(hlist[d].py,c)==0)
159 {
160 printf("姓名:%s 拼音:%s 哈希表中存储位置:%d\n",hlist[d].name,hlist[d].py,d);
161 g=1;
162 }
163 }
164 }
165 }
166
167 void printlist()
168 {
169 int i;
170 for(i=0;i<L;i++)
171 printf("%s %s %d \n",hlist[i].name,hlist[i].py,hlist[i].k);
172 }
173
174 int main()
175 {
176 int ch;
177 InputOldlist();
178 hash();
179 do
180 {
181 printf("1.查找 2.输出哈希表 3.退出程序\n");
182 scanf("%d",&ch);
183 switch(ch)
184 {
185 case 1:
186 findlist();
187 printf("Press any key to continue.\n");
188 break;
189 case 2:
190 printlist();
191 printf("Press any key to continue.\n");
192 break;
193 case 3:
194 break;
195 default:
196 printf("No this operation.\n");
197 printf("Press any key to continue.\n");
198 }
199 getchar();
200 }while (ch!=3);
201 }
posted on 2010-12-07 00:08 hicjiajia 阅读(1095) 评论(0) 编辑 收藏 举报
