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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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
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}
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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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* * ****   **    * **  **  *  0;
}
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Hidden content!
#include *** *   *  * *
*****   * *    * **
int main (){
char *   **  *
char   *  ***
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else
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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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{
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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];
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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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  * * *  ****  *  * ****     *  **** 
}
int main(void)
{
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*  *  *  * *  **  * * *    ***   **
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 **     **  *  **   ***    **    * ** * * *  ** ** ***  **     is a prefix of  * ** * str1, str2);
 * * *  *    *  ***** **  **
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** *****  ** ****     ** ***  *  *      * * * ***   *****    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)
  ** *  *  ** * *****  * * *** 
**   * * *  ** * ** * * **  ** * * **  *   * ** ****  ***  ** ** **
  * * ****   ** ********** *  *  * **   * ** ***  * 
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* * *  * ***** * *** * *        ** * * ** **   *******  *** * *   * ** ***** *  * 0;
  *    ***  ***  *  ***** **  *** ** ***** ** * ** 
 *  ***** ********* *   *  **
    * * **    **** * *  *    * ***   * * is a prefix of %s", prefix, word);
 *  *   ***   *   **  ****     * ** 0;
}
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Hidden content!
**     *******    * **
 **** *  *** **   **  *
****    *  * **  * *  

int main()
{
**  *  * * **** char  ** **
   *  *    * **   char  *  *****
 *****   *   ** * *  *  *  ** **   ****  word);
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 **   ** *  for(i = 0; *   *   *  * * **  ++i)
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    *    * ***  ***   *  * ** *    * ***  *  *
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 * *    *  *    *   *  *  *   *    * * **  **** 0;
*  **** **   * *     **** * ** **  }
   ** *****  }
*****  * **    * *  *   ** is a prefix of * **  * *     * word);
*  **  * * *  **  * 0;
}
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