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;
** **    *   ***  *  **    ** *** 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[])
{
*    **  *  ****  i;
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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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***    * **  *  * 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[])
{
*  *** *   **** *   *  * *    *****  *** 
** *   * *   ***   * **  *   *    ** 0;
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***   **** ** **   * **  
*  ***   *   * * ** *  ** * * ** ** 0;
}

int main()
{
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*   *  ****   ** ******
 **** ** *  * **** *          *     *   is not a prefix of    * **  * *

*  ** * * * * *  * *  0;
}
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Hidden content!
#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, *  * *
     *    **  *   * *
*  ** ***        *** **   *  =  ***  * ** ***  
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  ***  **** ***   * * **********  * **   * 
***  **  ***    * *******   * ** 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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