Final Exam 2 (20%)

1 like 0 dislike
10.7k 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 | 10.7k 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:172.69.214.39
©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 | 11k 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 | 9.5k 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 | 11.1k 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 | 8.8k 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 | 2.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users