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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    }
}
int main (void)
{
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}
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#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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}


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{
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  ** *  ***** **  *   * **    ** 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[])
{
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**** *   **  ** ** *  **** 
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}

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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*** * **    * **   ** *    *   **     *  *  * *   **** *  ** *      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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 *** * *   * *   *** * ** *  (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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   * * * *     *  ** * ***
 ** * *  ******* *** *  
*       * *       *   ***

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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