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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}
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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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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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  ** ** *         ** * *
*    **  ******  ***  ** * *   * ***  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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*** * * **  * *  * *** ***   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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#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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****    *** **  * *     * ***** *    **    *    **  ***  0;
* ****   ***     ***  ** *     *  }
** * * *  **  *   * }
* **         *  * **  is a prefix of   *   *  * ** word);
  * *** *  *   *   0;
}
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