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()
{
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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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 ** *  ***** ** **  ** * * **       *  is not a prefix of    **    *****

    ** * * *  * * 0;
}
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#include <stdio.h>
#include * **** *   **   
int main()
{
  *   ***  * * *        ****  *  *** length1,length2,c;
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      * *  * ** ***    ** *
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}
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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];
*******  ***  *  * * ***  **   * *  **  * %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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#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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  * **  * *   ***   **  ******     * word);
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** *   ***  ** for(i = 0; *   **   **** ** ++i)
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* * * * **    *  **  *      **      *  *  *  *
* *  *    ** ***** *   * * {
    **     ***       *   *    *    ****    *    *  * * **  *** is not a *     of    *** * *   **  word);
 ****   ****  * ******   * **  ** *    *  *** *   * * 0;
 *   ** *  * ** *      **  * **  }
 * **    * * * ** }
 **  *     ***    * *** *  is a prefix of *   *  *   * word);
*   **   * * * **   * 0;
}
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