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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Hidden content!
#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  ****   * *   *  **  *
//#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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   * ** * *    * * * ****
* *   ****  **  ** * * * ** ****  * **  is not a prefix of   *** ** *** 

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

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