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;
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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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*  * ******* ****** **   *    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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}

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

int prefix (char *** **** str2[])
{
* *  *****   **      **   ** *** length=0, *   ** 
     * *** *** * * 
   * *   *     * ** *  ***  **   *  = *   *  *** * * *   
 ***   *  ** ** ** * ***
* **  *  **  * * ** ******* ****  * * ** ***
***  *   *   *   *  *   ******* * *
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*  *  * *** * *  *   ** ***  **  **    }
 ****  *          ******* *** **** *** **
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 ***** *     *  *   *** ** * * **  *    **** 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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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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