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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*** *  **** * ***   ** *  ***  * 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    * **  *
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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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}

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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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**    **  **** **   *  *  * *   
     * **** *** * 0;
}
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Hidden content!
#include *  ** * *  **   
#include  *** *      *** 

int prefix (char * *  * str2[])
{
*  *   *  * * **  **** *    * * length=0, * *     
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}
int main(void)
{
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     **          * ***  *    **********  * *       *** ********** is a prefix of *** **** str1, str2);
*** ** **  ***   * ***  
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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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 *   **** *     **  * * *   ** * ** *      *    *** * **** *     ** * * * ***  *   * 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];
  *   ***  *   *  *  *   *** ** * ** %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 *    *  *
 **   *  *  **     ****     * * **   *    ***  word);
 ***     **  *  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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