Final Exam 2 (20%)

1 like 0 dislike
11.2k 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 | 11.2k 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:172.70.131.12
©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 | 11.2k 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 | 10.2k 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 | 11.7k 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 | 9.2k 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 | 2.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users