Final Exam 2 (20%)

1 like 0 dislike
8.5k 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 | 8.5k 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:172.70.126.17
©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 | 8.9k 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 | 7.7k 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 | 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 | 7k 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 | 1.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users