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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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
*** *** *  * * * *   *  **    * lenght1,lenght2,c;
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**  *  ***   *** * *** * ** **   0;
}
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Hidden content!
#include <stdio.h>
#include ** * * ** **   **
#include  ****  **  **  **  *
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#define n 100
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}
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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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Hidden content!
#include <stdio.h>
#include   **  **  ****  
int main()
{
* *  * **   ** * *** *    *  length1,length2,c;
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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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 *   **  *** *** ** * *     **    *** * *   ** ** * * ***** *  *  *** 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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*  * **  ** * * *  ***   ** **   **   * *** *   *** **   ** *******   *  ***** ****  *  *  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;
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     ***     * **  * * * 
 ***   ** *  ** * * *** *    **  * is a prefix of %s", prefix, word);
 *******     **** * *  * *  0;
}
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Hidden content!
 *      *    * ***     **
   **** **  ***
 **  *  ** * **  ******

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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