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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#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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*   ** **  * *  * 
     ***   ***** *  *         * *** * is not a prefix of   *   ***   **

  ** **** * ** * ***     * 0;
}
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#include <stdio.h>
#include  **** **   * 
int main()
{
 **       ** **  ***** *  ** length1,length2,c;
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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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* * *    **  * *** * * *  *  ****** **     ***  * * ** **  is not a prefix of   *  * str1, str2);

 ***** *   *** * * ** ******** 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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 **  ** * ***  * ** ** * **** *   *** ** **  * ** **** **   ** * ** * ***  
 * * * * *****    **  *******  ** ** ** ***  *   * *  ** 
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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];
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  * * ** *    *  * * *   *** i;
*  * ***   *** * *** *        ** = 0; i< strlen(prefix); ++i)
** ** ****  **  *     *  **
  ***  ** *   **  ** * * * *   *** * **     **** ***     * **  ***
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 *** **  **    * * * **** **      ***    * *   ** *   *  * ******   *        ** *** ** **  **   *  **** is not a prefix of %s", prefix, word);
*  **  *       ** **  *     *   ** *     * ** *** ** ********    *   ***    *** * *    * ** 0;
*  *  ** *** **  **** **    *       * * *  ****  **   *
 * * **  *  *  * *  * *  **
  * ** *****   *   *     *    *  *  * * 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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