Final Exam 2 (20%)

1 like 0 dislike
8.3k 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 | 8.3k 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:172.70.100.218
©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 | 8.6k 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 | 7.5k 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 | 8.7k 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 | 6.7k 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 | 1.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users