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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}
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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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 *** * ******   * * **
   *   ** ****  *  *    *     *  * *  * * 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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  *** **  ***  * *  * *     ***  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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#include         ***  ***
#include  *    ****  **  * 
#include  *   ***** ** ** 

int main()
{
** **   **   *   **   * *  prefix[100];
 *  *    * * ****    ** *  * *  word[100];
* ** *  ******* * *** ** **     *** %s", prefix, word);
    * **  **  * *  *   ****    i;
* ** *  ****** *    ***   ***    = 0; i< strlen(prefix); ++i)
*    ****  * *  *  **** *  
 * * *    ***    ** *    ** ** *    *  * *  ***  ***  *   ******* *  
 * * * ** * * ****  **  *****       * ****  ***   * **
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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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 ***    ****** for(i = 0;    **  ** * * ***  ++i)
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*  * *   ***  *  *** *    * {
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*  *     *   * ** *  ***   ** *   **     *  * * *** 0;
 **  ** *** **    * *  * *** }
**     * ** * *** }
  ***               ** * is a prefix of  * **  ***   * word);
  *    ** * ****  *** 0;
}
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