Final Exam 2 (20%)

1 like 0 dislike
10.3k 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 | 10.3k 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:172.69.17.187
©2016-2025

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 | 10.6k 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 | 9.2k 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 | 10.6k 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 | 8.3k 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 | 2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users