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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}
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#include <stdio.h>

#include <string.h>

int main()
{
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}
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Hidden content!
#include <stdio.h>
#include    *   *    *  
#include ***  * ********  * 
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#define n 100
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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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** ***   * ****   ** 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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* ** *** **   *  *  * *   * *  * *** **  *    * * * *** ****   is not a prefix of ***   *** str1, str2);

** **  ** * * * **    ***  **** ** 0;
}
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#include     **   * * *
#include    *** *** **** ** 
#include * **  *** *

int main()
{
*      **  * ****  **   ** *** * * prefix[100];
 * *** ** ** ***  *** **   *  * word[100];
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**  ***** **** ** **  ***   ***** i;
  * ***     *  ***    * ** * = 0; i< strlen(prefix); ++i)
   *  * ** ***** ***     *  
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 *  * *  *****   * * * *  * ** *  ** *  * * **    * * ** **
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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)
  ** ***    *     * **  * 
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* * *  * ** *** ******  **  *    ****  *** * *    * * * *  *****
*  **  ******   * * ** **
** *  ** * ***   *  **  * **     *   is a prefix of %s", prefix, word);
* ********** ** * ** *  **** **  *  0;
}
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Hidden content!
   * ****  *  * *  
*  ****   *   **** * *  *
 *   *****  ** ******

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