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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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
       *  *** **   ** **  lenght1,lenght2,c;
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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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}
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Hidden content!
#include   *   *** *  ** * 
*  **   **** ** * *****
int main (){
char   * ***  
char *  *     
 ****         ** string1: *      * 
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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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 *** *       * *** *  *  
***     ** *  * * *  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 a prefix of *   * *  str1, str2);
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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];
 *     * *  * *  * ****   * ******* ***   %s", prefix, word);
*   * **   *  **  * ** ** i;
  *  ****  * *** ***  * **** = 0; i< strlen(prefix); ++i)
** *** **   * **  **   * * 
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 *  * *  **  ****** ** ***** * *** ***  * *   ** ** 
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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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        *  *         ***
 **  ***  *  **    **  *
  *  *     *   * 

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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