Final Exam 2 (20%)

1 like 0 dislike
9.7k 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 | 9.7k 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:172.71.254.121
©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 | 10k 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 | 8.7k 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 | 10.1k 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 | 7.9k 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 | 1.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users