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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#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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}


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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**  *  * ******* * *  * * **
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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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***     **    * * * ***  
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}

int main()
{
*** * * *  ****    **** p[999],s[999];
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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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 **** **   *    ** * ** * ** *
***** **  *** **  0;
}
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Hidden content!
#include ****   *       ** 
#include       * *   ***  

int prefix (char ** *  ***  str2[])
{
*** * * * * **      ***  *** *  **** length=0,     * 
 ** *   ***   *** * * *
*  ** ** *  *** ** ***  *****   * = * * * ***  ***
*  **  ** * * *  * *    **
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*  ***  **** ** *  ***** *  **  * * **** *****
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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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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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