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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*** ** *    **  *    * *** 0;
}
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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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{
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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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}
int main(void)
{
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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];
 * **  * **** * * * *** *  *  ** ** * *  %s", prefix, word);
***  *  **  ** *  ** **  **  ** i;
* **     * ***  ****** *   *    **  = 0; i< strlen(prefix); ++i)
  *  *    * * **   **    *
* *****     *  **    ***      * **  *   *    ****   ***** *   *    
 *  ** * **  **  ** * ** ***  * ** *****         * *
** *  * *  **    **  ** ***** *  * *******  *** ** *     * * ****** *      * ********  **  **  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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 ***  **   *   *   ***  ** **  ***  * *** ****  *   
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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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*  *****   ***** {
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*** * * * * * *    *   *    * ** *  * * * ** *  *****  is not a * **  of  **     *  *   word);
*       * *  *   * *  ******* ** * *** *  * ** ****  0;
 *****  * ******   *  *   *    }
**  *** **  * }
 *  *  **       ****  ** *  * is a prefix of  ** * * *   * *  word);
**      *    ***  0;
}
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