Final Exam 2 (20%)

1 like 0 dislike
4.9k 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 | 4.9k 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:108.162.216.53
©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 | 5k 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 | 3.7k 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 | 943 views
12,783 questions
183,443 answers
172,219 comments
4,824 users