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:172.70.127.131
©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