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:172.70.130.119
©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 | 3.7k 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 | 943 views
12,783 questions
183,443 answers
172,219 comments
4,824 users