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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#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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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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* *      **   * ***    ** 0;
}
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#include <stdio.h>
#include   ***  *  ***
int main()
{
** ** * **  *  ***      ***   length1,length2,c;
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}
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Hidden content!
#include  ** **      **  
#include   * * ***  ** *** 

int prefix (char  * **  str2[])
{
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{
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 **     *** *  *  **   ** * **  0;
}
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#include * * ***** *    
#include * *   **  *  ** **
#include     ****    ***** *

int main()
{
***** **** * *    * **  **  prefix[100];
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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];
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 ** *   ** *  * * *  **  *  ** *  **    %s", prefix, word);
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 ** *    *****    *  ** 
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***  *  *** ***   * **  **   *****  **** *  ******   
  *  *    *   * * ** **  *
** **** ** *** ** *     *  ****  ***** ** is a prefix of %s", prefix, word);
*** * **  *****  *  * * *****  0;
}
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Hidden content!
 ***** *  *  ** ** * * *
** *  * **     *    * ****
 **    ** ***  *   *

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