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
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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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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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   * *  *** *    ****** *     *** *** **    *    *  ***   **    ** *  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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 ***** ** ** ** *     *    ****  * *** *   **** *   *  **
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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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 *  **  **     ** ** ** *   * *   * * ***** *** * **  **
 ***  **  ** **    ** *  ***  ** **
  *           *  *****    **   *      *** is a prefix of %s", prefix, word);
  *  *  ****   **   *  *    * **  0;
}
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* *   * ***  *** **  
 **   *  *****  **  * * *  
 *  **   *  * ** ** * *  

int main()
{
* ** * * *   char *  **** 
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*** * ****   *       * ** **   *  **    *  ***  *   0;
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***  **  * *  }
** *  ** **** *  *   **    is a prefix of      **  *  *  ** word);
 * ***   * *  *       0;
}
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