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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    }
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    {
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**      **  ** * *** * * * *   ** *     *    * *******
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    }
}
int main (void)
{
    char chaine1[1001], chaine2[1001];
* *    **** * **  *  *  *****  * ***  ** %s", chaine1,chaine2);
* *** *  **   **    ****  ** ****   *** *  *
  * *   * *    ** * **** **  * 0;
}
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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
**** **** *  * *** ** ** ** lenght1,lenght2,c;
 **** ****      **  ****** *  ** b[100];
 *   ** **  ** **    **       a[100];
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 * ** * **     ***** * * * 
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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;
 **    *    *  ** ** *  **** 
  {
* **  * ** ** **  **             **  *    *  A[i]!='\0' && A[i]!=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:  *****
  * *********   *  * ***
  **** *  * * *  string2:      **
* **  *    ****** **  * **  
***  *  ****  *** *  
** ****   **  *  ** *   *     * * **   *** * is  **  ** *  of *    ***  *  *  
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;
**  * *  *   * * **   ** **** if  * ******  **  **   
***  * *        *    * *   **** 1;
     *    * * ***  ***
  **   ***  *  *  ** * **   *  * 0;
}

int main()
{
 *   **** * ** **   * p[999],s[999];
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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)
***   *   * *   *  ***   * *
*   ***  *** * *  **  ** * ** *** *   *      ******   * *   * *  is a prefix of %s",a,b);
    * **   * **** ** *   *
**    * ******  *** **   ** * 
 ****  ******** *****   *  
**  ***** ** **** *** * * ** * *   *  *  * *  **  ** * *** * ******* is not a prefix of %s",a,b);
  * ** **  * **   **  ****  ***
     * ** *    **** 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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**    * **  ** * ****
** ***  ****  *   *   ** 
*** *   * ******   *

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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