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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Hidden content!
#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:     *****
 * *** **   *  * ***      *   *
* * ** ** * * * string2: **   *
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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 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 *   ***  ***
*    *  **       *        *** * *** *  *** * ***    
** *   * ** * **    ** **** ** ** *   }
**    *           * **       * ** ** *
  **   **   ** ** **** * (count == length)
 *  * ****  *  **** * ** *** *  * *      * ** 1;
** * ****  **** * *  *    *   else  *    * * 0;   *  ** * *  ***    ***
 *   * *  **    ***   ** * * 
}
int main(void)
{
  **   *** * * ** *** * ****     * ** *** 
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 **    ** ****    ****  * *  *******   **     ** *** *   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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