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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#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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 * **   *** * ***** *  *
  * * * * **    *  ** **    *  *  ** * ***  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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 ***  *    ***** ***   ** *  **  * *   * * *  * **   * *  * **        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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* *** * *     * **  *** * **** * *     ***     * * * *     ****** **  * * ** ** * 0;
**    * ** ***    **  *   *  ** ***   ** ** ** * *******   
  **  *  **   * *   **  *
  * **** * * * **  ********  ** * *  is a prefix of %s", prefix, word);
**  *  *  **   ****  *  * ** 0;
}
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**    * **   ***  * * *
  * ***   ** * **   * 
****    **    *   *  *

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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