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:172.71.254.165
©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