Final Exam 2 (20%)

1 like 0 dislike
4.9k 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 | 4.9k 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:108.162.216.53
©2016-2024

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 | 5k 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 | 4.5k 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 | 4.8k 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 | 3.8k 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 | 943 views
12,783 questions
183,443 answers
172,219 comments
4,824 users