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:172.69.59.14
©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