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:172.70.178.117
©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