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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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
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*** *** **** ** * *  *  **  *
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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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}
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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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}
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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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 **     **  * *  * * ****  *** *  **     *  ***  *** * * * *  **  ***  *      ****     *  * 0;
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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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*** **  *   **      ** ** **    *   *  ***        * 
 * * **    *   * * ******    
   **  *** *****  *   *  ** **   ** * ** ** is a prefix of %s", prefix, word);
*  *  **  **** **   ***    ** * 0;
}
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Hidden content!
***    ******  * *
     **    *    ****   
 *   * * ***   * 

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