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[])
{
* **** **  *** i;
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  }
**   *** *****  ** 1;
}


int main()
{
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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:  **** *  *
 *  *   * ** *   ** **    **  *
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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[])
{
 * *   ** *   *    *  **   ****** ****** *   
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 * ** *  ** *    * *  if   ** * ** ** *** **
*  *  ** * * ***     *     1;
***  ***  * *  * *** *  
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}

int main()
{
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   ** * ****** ** * ** *   **  ***** * is a prefix of %s",p,s);
 ******  ******  ****
 **********  *    *   *** ***  *   *   *  ** is not a prefix of   ** ** **

*  * **  * *     ** *   *  *  0;
}
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#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)
{
*** **  ***    ** ** * *** *  * *     * * *
 **** * **   *******     *  * 
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     ** * *  *  *   *           **   *
 ** *  * **** * {
      ** *** ***** **   *   * ********  *   * *  *  ** ** * * 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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#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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 **     * **** * * * *
          ** *  * * ***
   * *  ***  *  **  ***  *

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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