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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int main (void)
{
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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  **   **   *   **  *
//#include <ctype.h>
#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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Hidden content!
#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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 *     ** ***     * ***  
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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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*****   *  ** *****     *  * * **      *** ***  * *  *    * ***     *   ** *       * * *   **   0;
****   **  **    **  ***    *    ****  * ** ***    * * **** *
*   **   ** *     * * *    ****  *
** *  *  ** * * * ***   * *  *** ** ***  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   ***  
 ** * ****  * *   * char * *  ***
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** *    ** ** int i;
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*           *    * **   ** **   ** *    ***      * 0;
    *  ** *    *       **   *****  }
* * *    ** ** }
   * * ***  **   *  **** is a prefix of *  *  * **   word);
 *   *  * ***** **    * 0;
}
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