Final Exam 2 (20%)

1 like 0 dislike
15.6k 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 | 15.6k 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:104.23.197.65
©2016-2026

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 | 14.2k 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 | 13.5k 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 | 16.7k 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 | 11.6k 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 | 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users