Final Exam 2 (20%)

Question

15.9k 瀏覽

A string p is a prefix of a string s if the leading characters of s are identical to p. For example, "abc" is a prefix of "abcde". Develop a function prefix that checks if a C string p is a prefix of another C string s.

p是s的前綴若s開頭的一段字串等於p。例如，"abc"是"abcde"的前綴。寫一個程式判斷字串p是否字串s的前綴。

Example input 1:

abc
abcde

Example output 1:

abc is a prefix of abcde

Example input 2:

bc
abcde

Example output 2:

bc is not a prefix of abcde

[考試] 最新提問 1月 16, 2018 分類:Final Exam |
ID: 42299 - 從幾時開始: 2018-01-17 14:00 - 到幾時結束: 無限制
標籤修改 1月 16, 2018 用戶:thopd | 15.9k 瀏覽

37 個回答

頁:

coach · Answer 1 · 2018-01-18 18:38:34

內容已隱藏
     ** *** *****  *
  * * ****   * ******* 

int main()
{
*** * * * *****     char  *  **   
* **  **    *  int i,c=0;
* *  * * * *****  ****    *    * *    *   ** 
****  *    * *  * ***   *   ** *   * *  * *  *
** ** * *    ***   *****   ** * ***
   *** ** * *** {
 * *** *   * **   **   * ***   * *** 
 **** *    **    * ** * *    {
 * ***    *  ** * * ****   **  **  **** *   ***  ***** **   *   
* * ** ***     *  * *   ** *  **  *   * **   *  ** *** **   {
*  *   *               *  ***  **  * c=0;
  ** ** *   **  ** *      *  *  **    **  **     **  ** ***  }
***        ** *  * **  ***   * **   **  * *  else  *   *  *    *       *  
  *   * * * * ****   **    *** *    **  *     *    * ****  {
   *  **   *  **   * ***** * * *   * *    **  *** *   **       * *** * ** * c++;
  ***      * **  *  * ** * * ** *     *  **    **  *  * *  * }
** * * *    *    **    ** * }
***    *   * 
**  *  **  * * * if(c==0)
***   * * *** **    * *  * **  *   *  ** * is not a prefix of *   **** **  
* *   ****   **    else
  *  * * ***  *  *   ***       *  ******** is a prefix of ** * **
** ***  **   * }
********    *  * *  return 0;
}

最新回答 1月 18, 2018 用戶: coach (-258 分)
修改於 1月 18, 2018 用戶:coach

112233 · Answer 2 · 2018-01-17 17:52:12

prog.c: In function 'main':
prog.c:6:10: error: 'a' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
          ^
prog.c:6:10: note: each undeclared identifier is reported only once for each function it appears in
prog.c:6:17: error: 'z' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
                 ^
prog.c:10:12: warning: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^
prog.c:10:12: error: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:11:12: error: expected expression before 'return'
            return 0;
            ^~~~~~
prog.c:12:12: error: expected ';' before '}' token
            }
            ^
prog.c:12:12: error: expected declaration or statement at end of input

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

prog.c: In function 'main':
prog.c:6:10: error: 'a' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
          ^
prog.c:6:10: note: each undeclared identifier is reported only once for each function it appears in
prog.c:6:17: error: 'z' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
                 ^
prog.c:10:12: warning: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^
prog.c:10:12: error: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:11:12: error: expected expression before 'return'
            return 0;
            ^~~~~~
prog.c:12:12: error: expected ';' before '}' token
            }
            ^
prog.c:12:12: error: expected declaration or statement at end of input

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

prog.c: In function 'main':
prog.c:6:10: error: 'a' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
          ^
prog.c:6:10: note: each undeclared identifier is reported only once for each function it appears in
prog.c:6:17: error: 'z' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
                 ^
prog.c:10:12: warning: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^
prog.c:10:12: error: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:11:12: error: expected expression before 'return'
            return 0;
            ^~~~~~
prog.c:12:12: error: expected ';' before '}' token
            }
            ^
prog.c:12:12: error: expected declaration or statement at end of input

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

prog.c: In function 'main':
prog.c:6:10: error: 'a' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
          ^
prog.c:6:10: note: each undeclared identifier is reported only once for each function it appears in
prog.c:6:17: error: 'z' undeclared (first use in this function)
   if(ap>=a&&ap<=z || ap=a)
                 ^
prog.c:10:12: warning: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^
prog.c:10:12: error: missing terminating " character
     printf("bc is not a prefix of abcde);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:11:12: error: expected expression before 'return'
            return 0;
            ^~~~~~
prog.c:12:12: error: expected ';' before '}' token
            }
            ^
prog.c:12:12: error: expected declaration or statement at end of input

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

hubertyeh · Answer 3 · 2018-01-17 17:38:48

內容已隱藏
*  ****      * *****
 *  ***  **   *  * ***

char p[1000],s[1000];
int i,pl,sl;

int test(char p[],char s[],int pl, int sl)
{
 * *** ***** ** *   *****   **   i<pl; i++)
**  *  ***   *** *   **    *
* ****  *    **      * *     * ** ****  *   * **   *****   (p[i]==s[i])
* *  ***     ** *      ** ***** ** ** *  *** * ** 
   *   *  ***    ** * **   **  *   * **  * * *     * *  ** ***** *   * **     *  * ****** 
***  *  **  ***   ***** *    *  ** *   **** * ****  * * *  *      **  *    ** *  **** 
*  *   ***  * * *   ****   **  *  *** ***** ***    ***** *   **   *       *   ***** *     * * * * *  *  *   *  * * *** *  ** 1;
*  *   ** *  *    * * *** *  **  *  *    *   *  * ** *  * *   *     *** *  * **
 ** * *  *** *  * *******       *  * **   ** ** **   **
**     *** ****   ***  ** *  * **  *    **** **   * *** ** if(p[i]!=s[i])
   ******* ** * **  * ***** ***  ***** *     * ***  * * **   
 * **  ***  *  * ** *  * *     ** ****   *****  * *   *** * *** **     ** * *  * * * ** 0;
 **   *  * * ** **** * * * ** ***    * ***   *** **** *
 *        *** *  * *  *  ****
}


int main()
{
 ** *******  *  * 
   *     ***** *
*   *  *  * ** *  ",p);
  * * **  **** *  **  
* *** ***** *   *  *  

sl=strlen(s);
pl=strlen(p);


 *****  **   && pl<sl)
{

  ***  **  *** ** **** ****   ** *   * * * is a prefix of %s",p,s);
}else
{
printf("%s is not a prefix of %s",p,s);
}





}

最新回答 1月 17, 2018 用戶: hubertyeh (-336 分)

rick · Answer 4 · 2018-01-17 16:29:44

內容已隱藏
#include<stdio.h>
#include<string.h>
int main()
{
 ** **  *** **   ***     *  * ** *  a[99],b[99];
    int l,i;
** *** *   ** **   *    **** **** *   * 
 *****  * * * * * **** * **** *  **** *  *
**     *****  **  *   * * *   *  *
** *** ** *  **** ****  *****  * ***   
    {
*  *  ** * * **  *  **  *  * *   *   ** **  *****  ** ***     **
 *** *  * *** **** ****  *****  **   *  ** *    ******  
*  ** *    *** *   * * *      *   ***** **       **  ** ** *  ** *  **** ** ****  * *    * **  a prefix of %s",a,b);
  *   *    ****    *  **   *   * * * * **  ***  * * * *  * *** * **   *** ***** **
** ** *  *   * ** *  ***** *    *****   **  * ** * **   ** *
  ** **** *   * * * * *   *  **  *          *   * * **  **   **    **
** * **  * **** *****   *  **   ***   *  *** *** ** *  **
 ** * * * ***    *  * *  *** *** *  ** *** *    * *** * * **   *    *     *    ** *** ******  **** not a prefix of %s",a,b);
*    **** * *  ** **  *    **   * **  ****  **    *   **** *  ***      
   ** * * **** *   ****  *  *** *  *     * ** *   * 
    }


}

最新回答 1月 17, 2018 用戶: rick (-255 分)
修改於 1月 17, 2018 用戶:rick

Diyiel · Answer 5 · 2018-01-17 16:27:31

內容已隱藏
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

int prefix(char a[100],char b[100]);


int prefix(char a[100],char b[100])
{
  * **   * **  *   *    **  * i;
* *  **  *   *    **********   count=0;
    * * * *  *** *****  ** **** * len;

**   *  * ** *   **     ***  ****       

****  **      * *  *     ***  **  ****    * *
* *  **    * ****     ***
*   * **********  *  ***** ***   ***  **   *** * *    * ***  ** *  
* *    **    **    ****    * **   **  * *  **   *
 * ** ** ***  **  ** ** *    *  *      ** *  *** * * ** ***  **        *** ** *  ** **
  ***  *** *    *** *   ******  * ** *** *** ** *
**  ** *** ****  *   *    *  


** ***  *  * **  * * **  *   **
*   **  **    * *   * 
* * *  ** *** * ** *** * * *****   *   * *  *** ****    *  1;
** * **    *      **  ****  
* *  *  **  *    * *   *  **  *** 

   return 0;
}


int main()
{
**  ** *  * ** * *    *** *   **   a[100];
  **  * * ** * * *    ** ** *  b[100];


** * *  * ***   ***  *   * * **   ***  ** ** * * * **
 * ** *    *     ****** *  * * *** *****           **  *  * 

* ****  *  ** *    **** ** ****       
  *  **     *    *** **      * **    ** *

*******  **   **  *  * * *    ** *  **

 {
 ***       *    ** ***  * *  * **  **  ** *    *  *     ****   *  *** is a prefix of %s",a,b);
 **** **   **** ** ** *  *  **
* ** * *  ** * * ** ** **
* *  *  **  *   *** *** ** * 
  *  **  *   *  * * *  *     * *   ** *     *  **** * ** *  *    **          *  * is not a prefix of %s",a,b);
*** **** * *    * * ****** *  


*  * * ** *  *  ****  * ** *   * 0;
}

最新回答 1月 17, 2018 用戶: Diyiel (-193 分)
修改於 1月 17, 2018 用戶:Diyiel

410421322 · Answer 6 · 2018-01-17 16:12:58

內容已隱藏
#include **        ** * *  *
#include   **    *** *  
#include * *** ** *    **   

int pref(char[],char[]);

int main(){

   ** *   * * ** **       *** p[10],s[10];
 *** * * *   ***  ****  ** *   num;

*   ** *******  *  * *   ****** **
*     ****        ***    ***  *
***** **  ***** *    ****** ****  ***  *  * * 
*  * ** *   ***  **  ** **    *   *  **  * *

*  * * ***  ******** *  **    *  * = pref(p,s);

****   *   * ** **** * ******** *  *
 *   * ** ***** * *   * * *  **** * ** * * *  * ** *******   *   * **  *   is a prefix of %s",p,s);
*   *** ****  * * *  **  **  ***** **
    *  * **   **  ** *  **** ***** **  *     *   *  *  **   **    **  is not a prefix of %s",p,s);


 return 0;
}

int pref(char p[30],char s[30]){
* * ** ** *  ** * * *   * *     i;

* **** *  * **   *  **  *  ** *  * ****  *  *  ** * 
** * **  * ********* *****  * *  ***** * * * *  ***   * * **** * ** * *    *  * ** *   ** *    **      *  * 
** *   **      * **** *  **    *    **  ******  *   ** * * *   **  * ** ********* **** *  *  **  * ** * ** is a prefix of %s",p,s);
  ** **       **** ****** **   * *****    **   *  *   **  **** 
** * * ** ****  *  ****  ****  * *  ** ** *  ****  *  * **** ********** *  *   *   **  * *       *    is not a prefix of %s",p,s);

**** *  *  ***** ** ** *

}

最新回答 1月 17, 2018 用戶: 410421322 (-74 分)
修改於 1月 17, 2018 用戶:410421322

prog.c: In function 'main':
prog.c:12:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(p);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
prog.c:13:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cc0tBG5r.o: In function `main':
prog.c:(.text+0x1f): warning: the `gets' function is dangerous and should not be used.

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

prog.c: In function 'main':
prog.c:10:13: error: stray '#' in program
     int num;#include <stdio.h>
             ^
prog.c:10:14: error: 'include' undeclared (first use in this function)
     int num;#include <stdio.h>
              ^~~~~~~
prog.c:10:14: note: each undeclared identifier is reported only once for each function it appears in
prog.c:10:23: error: 'stdio' undeclared (first use in this function)
     int num;#include <stdio.h>
                       ^~~~~
prog.c:14:1: error: expected expression before 'int'
int pref(char[],char[]);
^~~
prog.c: In function 'main':
prog.c:23:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[10]' [-Wformat=]
     scanf("%s",&p);
             ^
prog.c:24:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[10]' [-Wformat=]
     scanf("%s",&s);
             ^
prog.c: In function 'main':
prog.c:51:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(p);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
prog.c:52:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~

發表於 1月 17, 2018 用戶: The Judge (4.3k 分)

潘恆安 · Answer 7 · 2018-01-17 15:50:02

prog.c: In function 'main':
prog.c:11:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
  scanf("%s",&a);
          ^
prog.c:12:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
  scanf("%s",&b);
          ^
prog.c:24:11: warning: format '%s' expects a matching 'char *' argument [-Wformat=]
  printf("%s is not a prefix of %s,a,b");
           ^
prog.c:24:33: warning: format '%s' expects a matching 'char *' argument [-Wformat=]
  printf("%s is not a prefix of %s,a,b");
                                 ^

410421323 · Answer 8 · 2018-01-17 15:35:28

prog.c: In function 'main':
prog.c:12:7: error: expected '(' before '{' token
     if{}
       ^
prog.c:13:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("abc", &p);
            ^~~~~
prog.c:14:13: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
     scanf("%d");
             ^

810532009 · Answer 9 · 2018-01-17 15:21:35

prog.c: In function 'main':
prog.c:7:9: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
scanf("%s",&string1);
^
prog.c:9:9: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
scanf("%s",&string2);
^

Final Exam 2 (20%)

請登錄或者註冊後再添加評論。

37 個回答

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

相關問題

Final Exam 2 (20%)

請 登錄 或者 註冊 後再添加評論。

37 個回答

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

請 登錄 或者 註冊 後再添加評論。

相關問題

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。

請登錄或者註冊後再添加評論。