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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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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}
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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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Hidden content!
#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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 * *     ****** ** ***   **  * *      * *      * **       **  ***  **     ** 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)
     *  ****  * {
 *  *  ** * * ***  *   * **   * *  *    ***
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  *  *   **  *  *   ** **  ***** * * *   *   * *** ***  *** *    is not a    *  of *   ***    **    word);
 *  *  **  ***  ** *   **      *****     **   *    0;
***    * *   * *  **  * *  * * }
*** *    *     * }
  *** **  * *** *  *** * * is a prefix of  *  * *  * * * word);
  **  * *** * * ** 0;
}
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