Final Exam 2 (20%)

1 like 0 dislike
2.6k 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 | 2.6k 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:172.71.254.70
©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 | 2.2k 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 | 2.2k 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 | 2.6k 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 | 1.8k 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 | 478 views
12,783 questions
183,443 answers
172,219 comments
4,824 users