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)
{
    char chaine1[1001], chaine2[1001];
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}
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#include <stdio.h>

#include <string.h>

int main()
{
**** *    *  *  ***** * *  * * lenght1,lenght2,c;
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** ** * **      **
****** * *****    **  *   *    0;
}
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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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**   ** ** * * **    * * *  ***   ** 0;
}
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Hidden content!
#include ** * **   **  *  
*  *    **     *  **
int main (){
char * * ***
char  *   *** *
*  *     **  *  string1: ***** *  
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else
 ***    *** ***  **     *  *    * ******** is not prefix of ***   ***   *  *   *    

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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}

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

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