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

int prefix (char * * * str2[])
{
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***  * *  ** *********  *     *  0;
}
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#include  * ** *** * *     
#include  **     * * *   
#include   ******   

int main()
{
     *****  **   * *  * **   prefix[100];
* **** ****    *    * * *   *  * word[100];
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**   **  ***** ** * *   **   i;
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***  * * ******************* 
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** * * * *  *   *    **  * * **  *    **    ** *  *
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* * * ***** * *   *** ** * **** *  *******    * ****
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* ** *   * * **  *    *  *** * *   **  is a prefix of %s", prefix, word);
*  ** *    * *     *    ***** ** 0;
}
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#include  *  * * *  *****
#include  * *  *  *  *  
#include  *  * * *   **

int main()
{
   ***  ********   *     *  *  prefix[100];
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 *  ****  *  *    **** ** **  i;
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 * *  *  * ***** ** ***  **** *
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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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 * * ** * *        **   *** *  ***  *  ***    **   0;
* * **     * *  *    ***   }
 * ***  *  **    }
 ***  ** ** *   * *    ** **  is a prefix of *  *  *  *    * word);
 * * *** **  *** 0;
}
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