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:172.71.255.88
©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 | 3.8k 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 | 943 views
12,783 questions
183,443 answers
172,219 comments
4,824 users