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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    }
}
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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   ******* * ** *  **    **  d[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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* ** *** **  *  ** * * *** * * 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 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);
** * * * **  *  ** *   **  *
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****** * ****  ***   *** 
 *     **  ** **   *    **   * * ** *   * ** * * *   *  * * * *   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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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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