Final Exam 2 (20%)

1 like 0 dislike
2.6k 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 | 2.6k 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:172.70.126.11
©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 | 2.2k 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 | 2.2k 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 | 2.6k 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 | 1.8k 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 | 478 views
12,783 questions
183,443 answers
172,219 comments
4,824 users