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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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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    **  **  **  *  * 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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  **  ** *** *** ****   ** * 
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*** **  *  *  * *   *  **    0;
}
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#include   * *** ** **  * 
#include  **** ****** *** *
#include **   ** ** **  *

int main()
{
**** **  ***      ***  *** * ***   prefix[100];
   *  **** **      **** *   * word[100];
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  * **** * *  * *  * ** * *    = 0; i< strlen(prefix); ++i)
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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];
***** ** *   **  ** *  ** **   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!
 *  **   *   *** * ****  
*** ****   *    **  
 *** * * ***  *    **

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