Final Exam 2 (20%)

1 like 0 dislike
6.7k 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 | 6.7k 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:172.71.254.21
©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 | 7k 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 | 6.1k 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 | 6.9k 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 | 5.2k 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 | 1.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users