1 #include <iostream>
2 using namespace std;
3
4 #define MAXLINE 1000
5 //读取一行输入
6 int getline(char s[] ,int limit)
7 {
8 int c,i;
9 i = 0;
10 while ((c = getchar()) != EOF && c != '\n' && --limit > 0 )
11 {
12 s[i++] = c;
13 }
14
15 if (c == '\n')
16 {
17 s[i] = '\0';
18 }
19 return i;
20 }
21
22 //返回s中与t首次匹配的位置,否则返回-1
23 int strindex(char s[] ,char t[])
24 {
25 int i,j,k;
26 for (i = 0 ; s[i] !='\0'; i++)
27 {
28 for (j = i,k = 0;t[k] !='\0' && s[j] == t[k] ;j++,k++)
29 {
30 ;
31 }
32 if (k>0 && t[k] == '\0')
33 {
34 return i;
35 }
36
37 }
38
39
40 return -1;
41 }
42
43 void main()
44 {
45 char line[MAXLINE];
46 while (getline(line,MAXLINE) > 0)
47 {
48 if (strindex(line,"ould") >= 0 )
49 {
50 //printf("%s\n",line);
51 cout<<line<<endl;
52 }
53 }
54 }