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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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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***    ***      ***      ** * *   *  **  ****  is not a prefix of *   **** **

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

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

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