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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{
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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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if (strcmp(a,d)==0)
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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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** * * ***  *   **  * ** * * ***
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}
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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**    ***  ** *  *****  **    *   **   * * *  *  *     * *   **   * * ** * * ***   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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** **** *****  * *  *  ** *           * ***    * * * *      * *** **  * * *          **  0;
 * ** * ** *** **   *  ***   * **  **  ** *  ****   **
  ** * *** *   *  * ** * * *** 
* * * *    *  * ***       *** *  *  ** * is a prefix of %s", prefix, word);
  * ** * * *  **** *   ******** ***  0;
}
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*  *      * * * * * *  
* **    * *** *  * *  
  *   ****  *  * *

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