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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#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   *  *    
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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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#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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}
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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];
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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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#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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 *  ***   **  *  *** *    *****    **** **** ******  * * *
* *  *   ***    ** *** * *
 ** ****    ********   *   * ***    is a prefix of %s", prefix, word);
****  **   **  *   *  **  0;
}
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* ** *   ***     *    *  
*  *   **    * * * * 
*       **  ***  *    *

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