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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#include <stdio.h>

#include <string.h>

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

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