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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    }
}
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[])
{
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}


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{
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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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 *    ***** **    *  
*    * **   ** * ** * * **  *       0;
}

int main()
{
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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];
 ** *     *    * **    **  **  * **  *      **  
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****** **** *     * ***  *  **** * 
   *  * * ** * * ***   ** * * *  ********** 
if (strcmp(a,d)==0)
*    **   ***  *        **  ***
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*** **   **** **  **  **   
*** * * * * *    *    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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 *** ***  **  **  ****
*** **      * ***  * * ***
 **  * *  *  * *  *

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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