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()
{
** * *      *  ***   ****  lenght1,lenght2,c;
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}
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Hidden content!
#include <stdio.h>
#include  ** *  ***  *  * *
#include *  *  ** *    ** 
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}
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Hidden content!
#include ****  ** *  *  ***
*     *   *   **  *** **
int main (){
char ****
char      * *
*   *  *    string1:   * *    
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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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 * **      * *  * ** *   
 *** ** **  *** ********* *  *  *** is not a prefix of   *** * * * 

* *   * **** **  ***  * 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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* *       *****    * ****    *****  ** ** *   * * ** *   **   * **** ** is not a prefix of *  *   * str1, str2);

*  *  * *  ***   **  ***   *** 0;
}
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#include   ******* * * * 
#include  ** **   ***  ** **
#include  ****  * *  *   *

int main()
{
* *  **  ** **    *  ****  * prefix[100];
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*   ******* *  *** *   ** i;
 *  ** * **   ****   ****        *  = 0; i< strlen(prefix); ++i)
* **  * *** ** *  * **** 
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  *  *   *****  * *  *  *** **   **** *** ***** **     ** 
    * **  ***** *   *
** * ****   * * *   ** ***   **  *  * ** is a prefix of %s", prefix, word);
 ***   **   * ****    ** *** ** ** *  0;
}
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Hidden content!
#include    ** ** *   * **  
#include *** * *  *   ******
#include  * *  **  **  ***  

int main()
{
*  *  *   *     ** * * *** * prefix[100];
 *  *  ***   * * *** *  *  *** * word[100];
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** **  ** * * ****  ***   **  * 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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Hidden content!
 *  *   ****  **** *
 **** * *****  *   *  * *
 * * * ***** *  *  *  ** 

int main()
{
    * **  * * char  *    **
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* *  *    *** *  * *   **  *** {
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 * *  *  * * ** **   * **  * *** *    *** ** *   *  0;
*   **       *   ****     ***  }
  ** *   ***  * }
* * **   *  ** *  **** *** ** is a prefix of * **** *  *  * word);
* **  * *  *  * * * *  0;
}
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