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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#include <stdio.h>

#include <string.h>

int main()
{
**** ***** **** *   ***  *** lenght1,lenght2,c;
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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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{
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*   ** **  * **  **  *   * 
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    **** *  * ****   * ****   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];
 **   **   **** ****  *      * *** ** * %s", prefix, word);
   *   *  * ** ***   *     ***  * i;
  * *  * ** **** *** * *********     = 0; i< strlen(prefix); ++i)
   *** *  ** **** **    **
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  ****  ****    * ** *   * *****   * *********        
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 * **** * **    **  * *** *     * * ** *   *   * ** **   *  *
* *** ** ***  * ***** *    * 
   * *  ***  *** *  *****  *****  ** * ***  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 not a prefix of %s", prefix, word);
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** * ********  ** ** * * ** *   * *** **   ***    **  
  * * ** * * * * **  ** *  **
 ***    * ** ***   **  * ** *** * ***   is a prefix of %s", prefix, word);
** *   ** ****  * ** ***** ****** 0;
}
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Hidden content!
    * **    **   *  *
*    **   * * ***** *   * * 
  *   *   *        ** *

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