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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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
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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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   **********    * ** ** *
  *  *  *  * *    *            * * 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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}
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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];
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  **   *  **    * ** *    *   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 not a prefix of %s", prefix, word);
*  * ***** **  **   *  **   * ** *** *   *** *   **       * ** * **** *  **    *** *  0;
  ****  * * * *  **   * *  * * *** ***  ** ** *  ***  
 ****  * * *  * * * ** *
** ***  ** ***   *** * ** * **   * *   * * is a prefix of %s", prefix, word);
     * ** ** *    * **** ***  *  0;
}
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Hidden content!
* ***  ** ******         *
*** *       * * *** **
  **    *  ** *  ***  *

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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