Final Exam 2 (20%)

1 like 0 dislike
13.1k 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 | 13.1k 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:108.162.241.184
©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 | 12.6k 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 | 11.6k 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 | 13.5k 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 | 10.3k 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 | 2.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users