5.1 字符串六月飞雪

5.1.1 WRTYU 　http://poj.grids.cn/practice/2538/

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 1 # include <stdio.h>
 2 
 3 char *s = "`1234567890-=QWERTYUIOP[]\ASDFGHJKL;'ZXCVBNM,./";
 4 
 5 int main () {
 6 
 7     char c;
 8     while ((c = getchar()) != EOF) {
 9         int i;
10         for (i = 1; s[i] && s[i]!=c; ++i);
11         if (s[i]) putchar(s[i-1]);
12         else putchar(c);
13     }
14 
15     return 0;
16 }

5.1.2 TeX括号　 http://poj.grids.cn/practice/1488/

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 1 # include <stdio.h>
 2 
 3 int main () {
 4 
 5     char c;
 6     bool p = true;
 7     while ((c = getchar()) != EOF) {
 8         if (c == '"') {
 9             printf("%s", p ? "``" : "''");
10             p = !p;
11         }
12         else putchar(c);
13     }
14 
15     return 0;
16 }

5.1.3 周期串　　 http://acm.hust.edu.cn:8080/judge/problem/viewProblem.action?id=19496

View Code

 1 # include <stdio.h>
 2 # include <string.h>
 3 
 4 int main ()
 5 {
 6 
 7     int len, n;
 8     char str[100];
 9     scanf("%d", &n);
10     while (n--)
11     {
12         scanf("%s", str);
13         len = strlen(str);
14         int i, j;
15         for (i = 1; i <= len; ++i)
16         {
17             if (len%i == 0)
18             {
19                 int ok = 1;
20                 for (j = i; j < len; ++j)
21                 {
22                     if (str[j] != str[j%i])
23                     {
24                         ok = 0;
25                         break;
26                     }
27                 }
28                 if (ok)
29                 {
30                     printf("%d\n", i);
31                     if (n) puts("");
32                     break;
33                 }
34             }
35         }
36     }
37 
38     return 0;
39 }

5.1 字符串 六月飞雪

5.1 字符串六月飞雪