Final Exam 2 (20%)

1 like 0 dislike
8.4k 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 | 8.4k 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:172.71.255.96
©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 | 8.7k 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 | 7.6k 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 | 8.8k 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 | 6.8k 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 | 1.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users