Final Exam 2 (20%)

1 like 0 dislike
13k 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 | 13k 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:172.69.17.66
©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 | 13.4k 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