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