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()
{
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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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  * * ********** ** ** * * 
      **    *  ****   ** *  **  *** is not a prefix of *  * ** *

 * ** *    ***  ** * *    * 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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**     *  *** *** *   *** **
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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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 **     * * **  ****   ** *  * * **    **   **    * **  * *  *** * 
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 *    *  *  * *** ** **       * ** * *** ***** *  ***      ** *  *   ****   **  * ***** * *   ** is not a prefix of %s", prefix, word);
     *  *   * *** * ***** * *  * * ***** * *  *** **********      *    *  0;
*  *    ** ***** **  *  *****  **  **  *   **** **
*  * * ******* **  ****   * ** ** *
 **    ******  **** * **** * **** ** * 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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 *** *** * * * ***  * **  * ** ******   * * * *     *****   ** *   *     * * *          0;
** **  ******** **  *  ***** **** * *  *  **    * *** 
*  **  **** *****   ***** 
*****  *** * * *      *  *** ** * **   is a prefix of %s", prefix, word);
** * * ***   ***  ******    0;
}
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* ** *   *****  *  * *** 
 *   **   *     ***   ***  
*** * * ***** ** * * *

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