1-11 Exercise 3: Prefix of a string

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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

 

[Exercise] Coding (C) - asked in Chapter 13: Strings by (12.1k points)
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#include<stdio.h>
#include<string.h>
char prefix(char string1[],char string2[])
{
    int i,s;
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**** ** ** * ***** **  *  **    *** ** ****   **** * **
    {
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    }
}
int main (void)
{
    char chaine1[1001], chaine2[1001];
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*     ** *** ** * ** ** *** * * ***  *  *  *
 * *  *   *  ***  **   ***** 0;
}
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#include <stdio.h>

#include <string.h>

int main()
{
    *   * * **   ** *  *  *     lenght1,lenght2,c;
**  ****  *    *   *     *** b[100];
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 *   **      *  * *   *  * **
***     * * *** *  ****  *   ** 0;
}
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Hidden content!
#include <stdio.h>
#include  ********
#include  *   ***  ****    
//#include <ctype.h>
#define n 100
int aa(char A[],char B[])
{
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}


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{
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  ** **       *  *   ** ** *  * **** ***  *****     *******   is not a prefix of %s",a,b);
**** ****     **  **   **       **** ** 0;
}
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Hidden content!
#include * ** ***    
 *   *  **   *   *  ** ***
int main (){
char    ***** 
char   **  * *
**  ** *** *   string1:  *   * ** 
 ** *  *** ****** *       ***
 *   ** * * *    string2:  **** 
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*  **** **  * *     *
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else
*****  ** *  **  *** *  * * **     * ***** is not prefix of *   *  *  **   ** * 

return 0;
}
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prog.c: In function 'main':
prog.c:7:9: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
 scanf("%s",&string1);
         ^
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Hidden content!
#include *     *   ** 
#include **  *****  **  
#include   *    **** 
#include  ***     
int prefix(char p[],char s[])
{
*****  ** *  * **  **      ** ***  * * *
***  *** *   *  **  *  *  *  * 0;
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  * ** * *  * *   * * *   ***** * *    0;
}

int main()
{
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 **** * ***** *** ** *** *** * *  ***  

 *  *   ** ** ** ** **  **
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** **  *     **** ****   
*  *    * * *******   *  ** *  ** ** * * is not a prefix of  *    *   * 

 * **    *  * *  * **    0;
}
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Hidden content!
#include <stdio.h>
#include   **** **    *
int main()
{
 * * ****   ** * *  **  *      length1,length2,c;
 ****  * * * *  **** ******    a[100];
** ****** ** *** **   ** ** b[100];
*   * *** ***   *   **   * * d[100];
** * * ** * *   ************ * **   **    **  *   *  
   *  *  *    *** ** ***   **     ** *      *  * * * *
 * *   ****** ***   ** *  *  **     ** **
    ****   *    *   * * **      ***  **  * *  
if (strcmp(a,d)==0)
* *       * ** * *** ****    **
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          * ****  ** *  ***
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 *   * * ** * ***    ****  
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**** *   **  **  ** * **  ***  
  *   ** *   * * 0;
}
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Hidden content!
#include **  *    **   * 
#include *   ******* ** *

int prefix (char *     ** str2[])
{
 *****   ***  *** *        *   length=0,   *  * 
   ****  ****   *  ***   
    **** ****  *    * * *****  = **  ** *  * *
*   *  * ** *** **     * * **** * *
 ** *  **  *  * * * *   ********  *** * * 
* **  ** ***  *** **     ****     ** *   **
*   *  *   * **   * ** * ** * if  ***  * 
*  ** *** * ** * *  ***          * ******    *  *    **   
  *    ** *   *** *   *  *********   }
** *               **     * * ** ** ** **
*    ***** * * * * **     (count == length)
* *      ** **    * *     *    **   *      ** 1;
*  ***** *  *******    * *** else  * *     * 0; **  ***  **   * **
*** * *  ** *  ***  **** 
}
int main(void)
{
***  * ***  ** **** * ** * * **    **  ****   ***
  **** ** * * *   **  *  ***   
 *****  * **    ** * *  ****     * ** ** ** * str1, str2);

   ***  **   * * * *   *** *****    *  
*       **   *  {
* **   ** **** *  **  **  * *** *  *** ******** *      ***   * is a prefix of     *  * str1, str2);
*  *  * *       *  
 *** **    * ****    * ** *
  *  **  **  **   **    *  *  * ***    *** ***** * *   ** ** *** *  *  *  is not a prefix of   * ***   str1, str2);

*       *   * ** * * **** ****  * 0;
}
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#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;
}
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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;
}
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Hidden content!
  **   **    *    
 *   ** ** ***   * **  
   *        ** **** *** 

int main()
{
** **  ** **  ** char ** *   
*** * **   **  char ****
**  ** ******  *  *  ** **  **   **   ** word);
* * * **  *  int i;
 * ***           for(i = 0; *  *  *  * ***** * *   ++i)
****    **    {
 ***        * ** *** * *   *   ** **** 
  * *** * **     **  ***      **  ** {
*** *    *   **** * *  **   *   * *  ** **        *  * * is not a **** of  *** **   * word);
   *   *  * *    *   *   **   **  **   **  *   ** 0;
 *     * ****    * **  *  * * *  }
*   *   **  * ** * }
* *  *   **** *    ** *  *** is a prefix of  **     * *    word);
*   *    * *  *  *  0;
}
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