Final Exam 2 (20%)

1 like 0 dislike
11.9k 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 | 11.9k 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:108.162.242.73
©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 | 11.9k 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 | 10.8k 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 | 12k 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 | 9.6k 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 | 2.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users