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()
{
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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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Hidden content!
#include *** * * **   **    
* *    ** ** ****    *
int main (){
char       ** 
char  *    *  *
** *  ** ** * string1: ** ** **
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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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#include <stdio.h>
#include  * *    *   *  * 
int main()
{
  **   * ** ***** *    *  length1,length2,c;
  *  ** **    * **  ***** *  * a[100];
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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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{
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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)
 *      ** *    ** **   * ***
 ** *  **   **  *  * ** ***   *  * *  * *   *   **    * *   **    *** ** *  
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 ** ****   *    * *   * ** *** * ** * *** ******   ** *   
 ****      *   **    *** *  
  *  *  ****** *   **   *  * * * *  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);
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 *** ** ****   *  ** ***    ***   *    *  *  ** *  *
 *** * ****    * * *** ******
** * ***   **      **  * *    * * is a prefix of %s", prefix, word);
*   ***  ** *** ***  ** ****  ** 0;
}
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 **  *** ** *  *** 
   *   * ** *** ***** *
** *           * *    * *

int main()
{
* * * *  **      char    * ****  
* **    **** *   char * *** 
 **     *      * *  ***   *  **   **  word);
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 *** *  *** * * ***  *  **  **  ** **    *  *  *
**** *   * **    ** * ****  {
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*    *     **  ** *   ** **  *  *   *  *   * *  0;
   **   ** * *   **     *    *** }
   **        ** * }
*** **  *   * *  ******     is a prefix of *   * * *** * * * word);
*  **         * ** 0;
}
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