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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    }
}
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[])
{
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  {
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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[])
{
*    *    *  *** * * * ** ***** ******** *
* *  **   *         * * ** **     * 0;
 *     * ** * ***   **   ** if ***  ** *   **** 
**  **   * ***** **     *** *  ** 1;
  *  ** *   * * **   * * 
****   ** ***    **   *  *      0;
}

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

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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