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

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