Final Exam 2 (20%)

1 like 0 dislike
10.4k 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 | 10.4k 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:104.23.253.43
©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 | 10.8k 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 | 9.4k 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 | 10.9k 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 | 8.5k 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 | 2.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users