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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Hidden content!
#include <stdio.h>
#include *    * **   * 
int main()
{
 ****  * *    ***   * *   length1,length2,c;
* ** ** * *  ** *     *      a[100];
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   * ** **** * **   *    *   **   **  **** ***     * *    is not a prefix of %s",a,b);
***     *   *     **    ** 
 * *  ****  **** ** 0;
}
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Hidden content!
#include *** *   ** *****
#include    *  *** *** 

int prefix (char *  ***  str2[])
{
*** *   * *****  ***    ***     length=0,  **** *
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* **  ****     * ***    else *   ** * 0; * ******    ***  *
** **   *** *  * * * * ** *   * 
}
int main(void)
{
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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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  * * **   *  *** *    * *  *  **  *   * ** * *   *    **
  *****  ***** *****    **
*  * *    *  **   ***** ** * * ***   * 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;
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  * * *** * ** *  * **  *** 
    **  ** * * *  *** **  ** * *   * *** is a prefix of %s", prefix, word);
  * *** *  **    ** **** *** *  0;
}
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Hidden content!
 *       *    *** * *
***    *  * *** * **  *
*  ***    * *** *    * **

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