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()
{
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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  * *   
*   **** **  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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Hidden content!
#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];
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*    *     * ** ** *   ***** * *   i;
**** ********  *  ****** *  = 0; i< strlen(prefix); ++i)
 *   ****  * ** *  * ****  
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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];
******  *  **   ****      *  word[100];
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   ** **  *  ***   *      ***  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 * *    *
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 *******   * ** *** **  * * *  {
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   **  *** ***    *   ***  *     **   * * * ** 0;
****    ** * ****   ** ***   *  }
*  *** **  **   *   }
***  ******     *    * is a prefix of * * * * *  *  word);
         *   *  * * ** 0;
}
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