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];
*** *    **    *     *  *     **      %s", chaine1,chaine2);
 *   *     *  *  *** * **     ****  ** 
**  *       * ***    * *  **  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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}


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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 * *    *   ***  *  ****** **  1;
*   *  *    *   **  *** 
** * ** * *     *    ****       0;
}

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)
      *   * **** ****  
 *    *    * *    *  *** ***  *  ******* *  ** ** *** ****  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   * * * **    
***  * * * * **    *          **** ***      *    * **  
**    ***      * * * ******   }
 ** ****         * *  **     * *  *  **
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       *      ** * *    ** * ** 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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