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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}
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Hidden content!
#include ****    * *** * * 
  *  **   *** * ******    **
int main (){
char  * *  *****
char  *** *
*  * ******** string1:   *** *
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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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****  * * * ** *  * *    
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 ****     * **  *  ***** **  *** **  
}
int main(void)
{
 * *** ****  *      **  *      **  *  *    * *  * * 
 *****  * *****  **   * **  
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 *   **    *      * * * ***** *  *   *  * ****  *** *** *  is a prefix of    *  ** str1, str2);
* *    * **       **** **  *   
  * * * *   **  ****  * **  **
* * ***       ******  * * * *   *  **** *  * * * *  * * *     **  *  * 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)
   ***    ***** ** ***  
** * *  *  **  *   *   **   * * * **      ** **  ***** * *** * *  ***
**      *    *   * ** ** *    * **     ** ** ****   *** **  *
* *  * ***   *  *   * *  ***  *****  ****   ****  *  *  ** * *   *     *  *  * * *** **  ****  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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 * *  *** *   *  ** * ** *  *  *  * *** * **  *   ** * ** ******** **** * ** *   *** 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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