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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*     ** ** *   *** ** *** ** 0;
}
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Hidden content!
#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
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}


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}
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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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* **     *  * * ** * * **     *   
*** **  ** **   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 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)
*   * *  * * * ** *  * ** 
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  ******  ** * * *** *  * *    *****     * ***  **  * ** * **
  ***  * * * *    *  *  *    **  ** ***   *   * ** *** *    ** * **  *  ***  **  ** *** *** 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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Hidden content!
 **   ** * *****  ** * ** *
  *** *  ****  *  * *
 ** * * **  *   **  *    *

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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