Final Exam 2 (20%)

1 like 0 dislike
2.6k views

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

 

[Exam] asked in Final Exam
ID: 42299 - Available when: 2018-01-17 14:00 - Due to: Unlimited
retagged by | 2.6k views

37 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


int isprefix(char prefix[], char txt[]){
 **** ***       ** *  *  ****  i,flag=1;
*  *  *  **  * **   ** *  **** * * *  *   * 
 ** *  *****      *      * *** * *  *    **** ****   * * ****  *  * * **
  *   * ** * * * ***  *  

    **** ** ****   * *     *  flag;
}


char prefix[100],txt[100],i;

int main(){
** * **    *    *   *** ** *   **     *     
**** *** * *     **   **  **   ****    **

* * *  ***  **** *  ***  * **** *     ******** * 
*** * *      **** *  **** * **  ** ** ****    **   *    **   **  ******    *  ****   ** * *   *
*  ** **   * **   *  ** *  * *  **** ****** *  *  *** * ***   * ** is a prefix of ",prefix, txt);
 * *** * * **  *   *   *   * ****   *** * *  ** ** **   *** *** **  *  *   **  * *   *  
  *           * *  ****   *  *
**** ** **  *   **  ***    * * *   {
       ***     **** * *  **** ** ***   ****  *  ****** ** ** *  * *** *       *  *     * *  ** *   * 
 ***** *** *    * *  *  *** *    ** *** **** ****     *  *    is not a prefix of ",prefix, txt);
* *   *  * ***    ***   * * * * *    *  * * * * ** **     *  *   ***       ***  * *   *    * *  
     ** * * ****  ***   
  ****  *  * * ****** * *       0;
}
answered by (-286 points)
0 0
prog.c: In function 'main':
prog.c:24:16: warning: too many arguments for format [-Wformat-extra-args]
         printf(" is a prefix of ",prefix, txt);
                ^~~~~~~~~~~~~~~~~~
prog.c:29:16: warning: too many arguments for format [-Wformat-extra-args]
         printf(" is not a prefix of ",prefix, txt);
                ^~~~~~~~~~~~~~~~~~~~~~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
***  **   ** * *  ***
 ***  ***   *** * * * ****
char prefix(char string1[],char string2[] )
{
* ** *  *** **   * *** ******  i,a;
***  * * * * *   *  * **   **  
 * * *** *   *    * * **** ***   ***  ** 
*   ***** *

  **  **** *   * * ** *  * **  ** ***** *** *
  {
*  *   *****   * *  *  ***           **** ** ****** **
   ** *** * ** **  ** ** *  **    ****  * *  * **  *  *
 **   *** * **
* ** * *****  * *      * **    *      ** 
**  **    ** ****    *  ** *   **** is a prefix of %s", string1,string2);}
      *   *****    *  *  ** ***  *  ** is not a prefix of %s", string1,string2);}
  *  *** **   
 * *     **  *****
     ******
    ***     ** * * ** ****** * * *  * *   ******  ** * **   *  ***  * ** 
 *  ** ** *  
* *** * **     * * *  **   ** *  ** *   ****** *    **** 
*  *  * ****   * *   *    * ** *** *  **   *
    *****  *  *   * ***********      * * ***  *** *****   **  ***  ** * 
  *      *  **   * *  ***** ** **    **
      ***   
** **   ****     ******     * ***** **
 * **  *   ** **       ***  * *** * ** is a prefix of %s", string2,string1);}
*   **    ****    *  **  ****** ** *  is not a prefix of %s", string2,string1);}
 *  ****   **

}
int main(void)
{
 *   *** * chaine1[1001], chaine2[1001];
  ** ** *  **    *    **** *  * * **
** *  *  **      **    **      ** *  
 **** **   **   ** *    ** *  
* * * * *  *** **    0;
}
answered by (-168 points)
0 0
prog.c: In function 'main':
prog.c:37:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1001]' [-Wformat=]
   scanf("%s\n",&chaine1);
           ^
prog.c:38:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1001]' [-Wformat=]
   scanf("%s",&chaine2);
           ^
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
**  *    * * * **  **
**  *****    ***    ****
int main(void)
{
****   ****     **      *  * **  str1[100],str2[100],i;
 ** * * ** ***  * *  ****   *  *     * *   *  *****    
*    * ** ** * * * ** **** **  ***  * *** **  **
** **    * ********   *****
*  *  ** ** *  *     **  ***** **   *** *  **  *    * *  *  *  ** **** 
**** * *  *    * *    * * * *    **   ***** * *****        ** **  ***** *  ***    **    * is not a prefix of %s",str1,str2);
 * * ** *  ** ** *****  *****   **** *****   ** ** ******** *** * * *       *  *   * * ** 0;
***     ** **  **   **  ** *  *** ** ** ***   **   **  ****** ** **  **   **   
***  ****     **   **  * 

 printf("%s is a prefix of %s",str1,str2);
   *   *** *   * **** *   ** 0;
}
answered by (-304 points)
0 0
prog.c: In function 'main':
prog.c:6:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%s%s",str1,str2);
             ^
prog.c:6:15: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%s%s",str1,str2);
               ^
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str1);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:7:22: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
     for(i=0;i<strlen(str1);i++)
                      ^~~~
prog.c:7:22: note: expected 'const char *' but argument is of type 'int *'
prog.c:10:23: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
             {printf("%s is not a prefix of %s",str1,str2);
                       ^
prog.c:10:45: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
             {printf("%s is not a prefix of %s",str1,str2);
                                             ^
prog.c:15:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
  printf("%s is a prefix of %s",str1,str2);
           ^
prog.c:15:29: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
  printf("%s is a prefix of %s",str1,str2);
                             ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:8:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str1);i++)
               ^~~~~~
prog.c:8:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:8:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
 * **  **  *** * ***** * * ** * str1[100],str2[100];
** * * * *******  *    * *** i,c=0;
** ***  *  ***  * * *** **     * ** ** **** ***** * 
 *   * *   **** **      * **** *****  *** *   *
**   *  *  **   * **** **  **   *       ***** *  *
 ** ** *  *  * * **     **
 *****  * ** **    * * ** **** *  ** * ****  ***    ***  * *  *** * **     
***** *   *** * *   * *   *   ** ******   *** *    *** *  
 **    * ***   *   **  * *** *    * *   ***  * *  ** * ****  **     **    * ***  
* ** ** *  ***    *  * * **** ** ****    ** ** ****  **  
    }
 **  **  *  * ** * **      ***  *
* * *      ***   * ** * *   **
* **   *    * *  ***     * ** *   * * ***  ***    ***  *    **      * is a prefix of %s",str1,str2);
**    *  *   **  **    * 
*    ******  *  * **  * * 
 ** * ***   *    * *  *   ** ** 
      *   ** ** ****  **  *** *****   *** ***        * ***  *   is not a prefix of %s",str1,str2);
* ***  ***  *     *    * * *** **
}
answered by (-140 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
# include <stdio.h>
# include <string.h>
 int main(void)
 {
 ** ** *****  *     * **  *****   pre[100],str[100];
*      **** *  *   **    *      **  ** i;
**  ** * *    ** *  *   *   *    **     * ** ***  *  * 
 ** ** *** **  **   * ** ** **   *  *  **  ** *  * * 
 * * **  ** **  * **   ****   * * ***** *** *** * **  * *
    {
 ****    *   ** **  **      *  ****  * * *** *** * **  ***     * * ** ** ***        
  ****  *** **** * ** *       ****    ****  * *  ** ** ***   ** ** ****   ** ******* **
*  *****  *   ***    *  * *   ** *  *   ********   *  *   ***   * ****** *  ***  *** *      *   ***  * ********  * * *  *   *** is a prefix of %s",pre,str);
 * ***    **     **  ** ***   * ** * *** *   **   **    *   *  ** * *  * *** **    ***          **** * **** *  * * *
***   * *** * *** * *  *  * **    * * *****  *  ****  * *       * *      ***** * 
*    *   * *    * * **  *  * ** **  ***** *   **** * 

**   **  * * * * * ** * ** *  * ****     ** *** ** **  * ** ** * **   * ****  
***   *    ****  **  **     *   ***   ** * *  ** * **   ***** *   *    * **  *    ** * * * * ****  *   ***  * * is not a prefix of %s",pre,str);
  *    ** **   *   ***** *** *****   * * * ***********        *  *** **   * *   *  * **     **  *      * * * 
 * ** * *   *  *** *  *    * *  ******  *** *  * * * ***  * *  * *****   *  
    }
    return 0;
 }
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
******  *** *    * * ** ***  str1[100],str2[100];
  *   *  * **   * * *   i,c=0;
 **** * * * ***** * *** * *****   ***    *  *
** * ** ** ***** * * **** **     ******* **** *   
* *      * **   ***  ****     * *** ***** * *     *
  *   *   **** *   * ******  
   *   *   ** **    *  **  * *****   * **   * * *******  * *** * * ** *   
 * **** *  **    * **  *  ***  ***  * * ***  **  * *******
** **   *  * ***** * * **  *****   *  *       ***   * * ** * *   ******  *  *    
 *   ****  * ** ***  * * ***  ** **  **** * ** ***
    }
 *     *********** **  *** *    *
 *  * ** ***  **  ** ** * * *
 ****  ****  *  ** *  **   *  * ** * **  ***  ****      *      * *  *  is a prefix of %s",str1,str2);
** * *  *   **    **   * ** 
* *    *   *  ** ******   *   
 ***  *  **  ** ***  *    **
**** * * ******* *  ** *****    ***   **   *       *** *  *   *    is not a prefix of %s",str1,str2);
* ** * *** ** ** *   * 
}
answered by (-323 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include * ** **** *  ****
#include    ** * *****    
#include   ***     *  * * * 

int main()
{
 ******  *  * *      ** ** prefix[100];
*  * **** **** *   *    * * *  * word[100];
 *  *****   * **  * *  *   *  **** %s", prefix, word);
* *  **    *   *  * *   **  i;
 *      *     *   ********  * * = 0; i< strlen(prefix); ++i)
   * * ** **** *    * *
*** **    ** *   **   *** ****** *  *  *  ** **   *  ******  *  *
  ******   *       **     * * **  * ***   **   **** * *  ***
* ******   *** * * *  **     * ** *** ****  *   *** *** *  ** * **** **   ****** ** * ***    **  is not a prefix of %s", prefix, word);
  * * **  * ** *  ****  ***  *** *** * *   **** ** * *    **   **   * **   ****     0;
  **** *** ****    **** ** * *  * ***  **     ***** *
*** * *    *** ****    *  ** ***
 *   * **** ***  **** *** *  *  ** *  * is a prefix of %s", prefix, word);
**   * *  * * *** *   **  ***  0;
}
answered by (-254 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
  * * *** * * ****  * *  *  n,count;
*  *** * ****    * * * * a[100],b[100]={0},c[100]={0};
* ** ***** *  * ***   *  ****** *** * %s",a,b);
 *    ***  **  ** * **   ***  *    * 
* ** ****** *    * *** ** * * *   *  * * ** **    
 * * **  *   ****   ** *  *  *  *  **   * * * **   
   *  * * ** ****   **  *****
 **** *    **** *  **  ***  ****    ****   ** *****   * * **  
 *        *    * **    **** *
 ****      ***  * *    ** * ** ***     *     ** *  
*  ** * * *  *  *  ** ***  ** (strcmp(a,c)==0)
   * * *** ****** *    *   *  
***  ** * ***      * * ***    ** ** **   *** * *   *     **    ** is a prefix of %s",a,b);
 ** ****  *      *  *   * 
* ** ***  **    ** * * * *    
 *  *** **  *     ******
**   **   * ****** *  *  * ** *  ** *     ***   ****  *  *****   is not a prefix of %s",a,b);
* * **  **       ****
 * *** *  *  *   *   *** ***** * 0;
}
answered by (-229 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
* *******    *****  ** **** **** String[50],string[50];
*  * *    *  *  **   * a,b=0;
  * *** **  *** * ***  * * *   *  ***      *  *  *
   * ** *  *** **** *  *   *  **    * * *  *   **  *

*  ** ** *          * *  *   *****    *** *   ** *  
  ** *  ***  *   *     ****
*       *   ****  ****** * * *** *    *  *   ***   ** ** *  *  *  **** ***
  *   *  *  ** ***    ***  * *   ***  **** ***  ** ***** 
 *  ** *    **  *          * *  ** *   * **   *    ** **   *        **  *****  *  **** *
   **** ***** *** ****   *    ** **     ** *  * *    ** 
    }
**** *** ** **  * *   **** **  *
*   *      * *** **  **   **  
*    *** *** **  ** *   ** *    *  **  ***   * ** ** * * *  **   * * * * is a prefix of %s",String,string);
* * **  * **    **      * 
*   * *  ****       * * **  ***
** * * *   * ***  * **  *** 
  *** *   ******  ** * *  **  ***   * *   * ***** *** *** *  **   * * is not a prefix of %s",String,string);
   *  **  * **   * *  **     
  return 0;
}
answered by (-107 points)
edited by
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include **   * ****  **
#include ** ** * *  * *  **

int main()
{
* ****  * ** ** * **  *  **    ** a[100],b[100];
 * ***** **** ** *** * *** * * *  ** ** %s",a,b);
 ***    ***  * * ***      i,j,prefix = 1,len = strlen(a);
**   *  * * * ****  * ** *    = 0 ; i < len ; i++)
**** ***** ***  **   *** *  *  
 **  *   *** ** ****   **  **  ***  *******  *** *   *    ** != b[i])
  ** **** *  *       * **   **    **    *      *     ** * *  *
* *   * ***    *     *    ** ***** ** * **     * * ** ** **     *  *   ***   * **  = 0;
  * *  * *   **       *    * * * * *   *  ** *  ** ***** * * ******  **  ******     ** is not a prefix of %s",a,b);
 *    **   *  **** *   *  * * *   *  * ***    * ***   *  * *   ** **  ** ****  *    **
*     ***     *** * * * * *  ***     *** **    *** ***  *  

* ***** * *  *   ***  **** ** 
    ***  **   * *    *   *** * == 1)
* *  *****  *** * ** ** **        *   *  ** *  *    *  *   * ***** * *  is a prefix of %s",a,b);


** *      *  *****  **  * * **  0;
}
answered by (-255 points)
edited by
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.100.51
©2016-2024

Related questions

1 like 0 dislike
37 answers
Final Exam 5 (20%)
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42302 - Available when: 2018-01-17 14:00 - Due to: Unlimited | 2.2k views
2 like 0 dislike
31 answers
Final Exam 4 (20%)
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42301 - Available when: 2018-01-17 14:00 - Due to: Unlimited | 2.2k views
1 like 0 dislike
32 answers
Final Exam 3 (20%)
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42300 - Available when: 2018-01-17 14:00 - Due to: Unlimited | 2.6k views
2 like 0 dislike
30 answers
Final Exam 1 (20%)
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42298 - Available when: 2018-01-17 14:00 - Due to: Unlimited | 1.8k views
0 like 0 dislike
4 answers
[Makeup] Final Exam 2 (20%)
[Exam] asked Jan 19, 2018 in Final Exam
ID: 43460 - Available when: 2018-01-20 09:00 - Due to: Unlimited | 478 views
12,783 questions
183,443 answers
172,219 comments
4,824 users