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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    }
}
int main (void)
{
    char chaine1[1001], chaine2[1001];
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** *    * *** **  *******  ** ** *   *  *
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}
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#include <stdio.h>

#include <string.h>

int main()
{
* **     *    * * **** **   * * lenght1,lenght2,c;
  ** *** *  *  **  *** **   ** b[100];
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}
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Hidden content!
#include <stdio.h>
#include   * *  *  * **
#include      * * ** ** *
//#include <ctype.h>
#define n 100
int aa(char A[],char B[])
{
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{
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  * *  *   *  ** * ***** ** *** 0;
}
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Hidden content!
#include  ***** *   
* ***   *  ***   *    *  
int main (){
char  **  *  
char ** ** **
*****  **    * string1: *** *
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 ***  *        *   string2: **** * 
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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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}

int main()
{
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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];
* *  *   *******  *  * **     * b[100];
  ****  **     **      * ** * **   * d[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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 ***  **  ** * ** * * **  *** if     **   * *
 *  ***    *     *     **       * ** ***** * **  * ******   
* *  *     **  **** * * ** * ***   }
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* *     ** * *   **  **  * * else  *  *  * *   0; *   ***  *** *  *
 *   * *   * *   * **  *   * *  
}
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];
**  ** * *** ****  *** **** ** *  **** %s", prefix, word);
**  *** **** * * *  ** *** i;
  ** * * *** ** *** *  ** **    ** *  *  = 0; i< strlen(prefix); ++i)
**  * *** * * **  
**** ***  ** *** ** *  **   * ****** **  **** * *  ***  *  ** * *
* **   **    *  **** **      *** ** * ** * *  *   *    * *
 *** *** * * **  **   **   **  * *    *  **   **        *****        *** **        * **  is not a prefix of %s", prefix, word);
 *** ***** **** * **** *  **    *** *  * *    * *      *** ** ****    ** * ** * *  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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      *     * * *      * * ***   * *   * **     *     
* ****      *  * ****   *    **** 
* * **     * *** *  *  ***  **** * is a prefix of %s", prefix, word);
**   *  **   * **  ***    * * 0;
}
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****    ** **** *** 
* **  ****   *****   
* *   *  * * *   *   * 

int main()
{
***  *   * *  char *   * *  *
* **  *   ** * ** char   *   
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 ***  ** ***   int i;
* * *  *  *  **    for(i = 0; *****    ** ** ***** ++i)
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 *   *  * * *  *    *   {
     **** *    *  *  * * **   * *  ***  ** ** ** ****** * ** is not a  *  of ***  *    *   word);
* ** *          *  * **  *  *     *** **    *  ** 0;
 * * *** * ** **  *** *** * }
 *****  **     }
  ** *  * ***     ** * **   **  is a prefix of   **** *   *** word);
***  *   * **** *       0;
}
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