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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***    ** ****** **** * **  0;
}
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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
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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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#include <stdio.h>
#include *  *  *       * *
int main()
{
  *  *  **  **  *** **    ***  length1,length2,c;
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 ******** ***  *** **** *     
* *****  *  * 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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** ** *  ** ****  *** * **   * *  *****  *    * *** * ** ** 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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*****  **    * ** ***  * * *     *** * ***** *    **   *    ** *   * **** * * **   * * ***  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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*    *****  **** **
** * **    *  *  ** *
   ***  **   **  * **   *  

int main()
{
**    *  **   char  **    
*  ** *   **  * char    ***
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 *** ** *   * int i;
 * * **  * * for(i = 0; *       *   * *   * ++i)
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  ** *    **   *  **    ** *** {
* * * ***    * **   * *     *  ** * * **   **   **  *** is not a * ** of *  ** *  *  *  word);
 *** ***  * **  **   ****     **  *** *  ** * **  * * 0;
****    *   *   * * **   * * }
    **  * * *    }
*** ***** * * *** **** *** *** is a prefix of    ** ** ** word);
*** * *  *   *   *  0;
}
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