Final Exam 2 (20%)

1 like 0 dislike
5k 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 | 5k 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:172.70.100.193
©2016-2024

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 | 5.1k 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 | 4.5k 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 | 4.8k 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 | 3.8k 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 | 953 views
12,783 questions
183,443 answers
172,219 comments
4,824 users