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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#include <stdio.h>

#include <string.h>

int main()
{
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* *  *  * ****  *     **    *  *** 0;
}
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Hidden content!
#include <stdio.h>
#include **    ****  *   *
#include    *  **   * *******
//#include <ctype.h>
#define n 100
int aa(char A[],char B[])
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  *** * * ****      *  * ***     ** 0;
}
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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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{
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** *  * *** ** * ** ** *
 ***  * *** ***  *  ** *  *  ** ** **** **** is not a prefix of ***  *****  

* *   * *   ***    * 0;
}
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#include <stdio.h>
#include *   * ** * * **** 
int main()
{
**  *** ***** * **   **  ******  length1,length2,c;
*  ** ** * *  * ********    a[100];
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  **      *** **  ** **  **    ** *   ****     * *  ** *  * ** is not a prefix of %s",a,b);
 ***  **  ** **   **    
*        * ** * * * 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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  ***  ****        * * *     ** *   * * * ** ***  *  * **** *   *  **** **      * *   ** is not a prefix of %s", prefix, word);
* *     **  * * *   * * ** *  *  ****    *  ** ** *  *   ****  ***  *** * **   * *  **  *  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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***  *    * **   * *    ****   * ****  **   * * **** * **  * ** * *** ****    ***  0;
*****     **  * **  **** ********** ***   *  * *  * * *
    *   ** ****   **** ** 
*  * *** *** **   *  *** *  *** *  ** ** is a prefix of %s", prefix, word);
** ** *    * ** *  **  ******* 0;
}
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   * **  *  ** **   *   
  **      * * * * *  ***
*  * *   * *  *   *** *

int main()
{
* *   **  **** ***  char *   * **  
*    * *    ** * char  ** ** **
** * **  **  **  *  *****   *       * *  *   word);
*        *    * int i;
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* **  * ****   {
       *** ** *  ***  * *    *   ** ****** *
 ***  *    *  *     * ** *   **    {
  **       *  *  ** *  * *     *  * **   ***   **        *  is not a ****  of *   *** ****** word);
* ****  * * * *   *******   *   ****  ***   * * **  0;
 *   ** ** * * ****  *   *  *   }
*   ***  *  **  }
* *    *    * ** ***    is a prefix of * **   * **  *  *  word);
   *  *    *  *  ** 0;
}
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