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
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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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 * * * *  *  ****    *
   **  ******  * * ***  *  **** **** * * 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 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];
 ***** * *  **  * *   **   ** *     * * %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!
#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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   *     * * * ***  * * *  *  ** *        *   **** *  * *****   ***   * *  * * 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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