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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 *** ** *** ***   **   * *  *  * *   * ****    ***** *  * ***  *  is not a prefix of %s",a,b);
 *** *     *** **  ** * 
*** ** * ** * *  *  ** **   **  * 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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*****  *** *  *       ***  * ** 0;
}
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Hidden content!
#include * ***** *       * 
 *  *     *  ** **  *
int main (){
char * *     
char * **** ** 
 *** **  ****  string1: *    ** 
 * **  **** *  ***  *   ***   * ** ** * 
  **   ****  *  string2:   ** *  
***       *     **    ** ** *
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****  *** * **    *     *   ****** *   is  *** * * *   * of     **** * *  *  *****
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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  ** ** *  *     **    if * *        **** 
 **    **  ***  *       *  *** 1;
*    *     *******  ** *
  * *  *  **  * ** *  * **      * 0;
}

int main()
{
*   ***** *   ****** p[999],s[999];
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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];
*    ** *** *    **    * *** *** * * * * *** ****** 
**  *   * ***   **   ***    * ** * * *  *  *   * 
 ****  ** **   *   *   ****** ** * ** * *
**     *  * *  *  ** ***  *** * ** * **  * ***
if (strcmp(a,d)==0)
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***    ** ** *    *   * *** * 
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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, **  ** 
* ***  * *  ** *  **
* **   * * *  **  *********** **  =  ******* **** * 
*   * * ** ** *** ** ***         
* ** *  **  **  *** *** ** * *    *   * ** ***
  * * * * ******     ** ****** ** * *    *     *
   **  *    ** *   * * *    * if **  *   ** ** **
 *   *   ***  * **  *       ***** **  *   *  **    
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  ****  *    * ** * * (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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#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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