Final Exam 2 (20%)

1 like 0 dislike
13k 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 | 13k 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:172.71.120.163
©2016-2025

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 | 12.6k 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 | 11.6k 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 | 13.4k 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 | 10.3k 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 | 2.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users