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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#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  **  ** *** * *
//#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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 **   *** ** * ** * * * 
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*** * ** * **** *** *** * 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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}
int main(void)
{
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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)
*  ** *  * *        * **** * *  
  * * *  ***** * * * *   *   ***  *   * *   **     * ***    **   
* *   *      *     ** *     ** **** ***  ** * * * * **   ***    *
 * *         *   **    *  * *  *  *         *** ** ** ***  * ** *      **** **  *   * *  **   *  **   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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   ** ***   * *    * *** *  *  * **   **  ** * * ***** ****  *       * *    **   *  ****   is not a prefix of %s", prefix, word);
 **  *** ****  * ** * ***  * *  ** *** *  * ** *  ** *  * ** * *  ** **   *   * *   ***  0;
* * *    * * *     **  *****    **  *   ***** * * *** * * *
   * ** ** *   *** * *   **
***    *        *****   ***  ** * *  * ** is a prefix of %s", prefix, word);
  * **   *  *  ****** * ****  0;
}
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****    * *  *  ** *  
*** **  ** ** ** **
*  ****       **   * 

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