Final Exam 2 (20%)

1 like 0 dislike
13.2k 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 | 13.2k 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:172.70.126.217
©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 | 12.7k 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 | 11.7k 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 | 13.6k 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 | 10.4k 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 | 2.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users