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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{
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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>
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}
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Hidden content!
#include  **  ** ***   
  * * *   **         ****
int main (){
char  **** **
char *  *   * 
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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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Hidden content!
#include <stdio.h>
#include  ** **** *  *  * *
int main()
{
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**       *   ***  *** **** * 
* * * ** *    **  0;
}
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Hidden content!
#include     * * * ***  
#include  ***** *   *     

int prefix (char *  * *** str2[])
{
  **  * *  * **      *  *    * length=0, * ***** 
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**  *** ******** **** *  *     0;
}
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#include ** ** ***  *   
#include    * * ***   * *
#include * **      * 

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

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