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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}
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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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*****     *** * *  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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{
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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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 *     **** * ***** ** ***    *
   ** *  ** * ** **** * * ******** * **   * is a prefix of %s", prefix, word);
*  **    ** ***   * *** **  **  0;
}
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Hidden content!
#include   * *****  * * 
#include ***  **   **  * **   *
#include    * ** *   **** * 

int main()
{
 ** *  ***   * ** *   * *****  * prefix[100];
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* *  *****   *  * ***  * * ***  **** *  %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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*    * ****  * *  *
   *** *   * **** **      *
* *     * *  *     ** **  

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