1 /*************************************************************************
2 > File Name: 33_FirstNotRepeatChar.c
3 > Author: Juntaran
4 > Mail: JuntaranMail@gmail.com
5 > Created Time: 2016年09月02日 星期五 13时43分20秒
6 ************************************************************************/
7
8 #include <stdio.h>
9
10 char FirstNotRepeatChar(char* str)
11 {
12 if (str == NULL)
13 return '\0';
14 int HashSize = 256;
15 int hash[HashSize] = {0};
16
17 char* key = str;
18 while (*key != '\0')
19 {
20 printf("*key = %d\n", *key);
21 hash[*key] ++;
22 *key ++;
23 }
24
25 key = str;
26 while (*key != '\0')
27 {
28 printf("%d ", hash[*key]);
29 if (hash[*key] == 1)
30 return *key;
31 key ++;
32 }
33 return '\0';
34 }
35
36 int main()
37 {
38 char str[] = "adaccbweff";
39 char ret = FirstNotRepeatChar(str);
40 printf("%c\n", ret);
41 }
