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()
{
 ***  **   *  ***    ** **  lenght1,lenght2,c;
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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 ***** ** **
 ** * *  *    string1:  *     ** 
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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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 * *** **  *    * ** **** 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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** **  **  * *    * **       ****  * * *   **   *  ****        **   is not a prefix of  * **** * str1, str2);

       **    ** * ** ***** 0;
}
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#include    ***  **  * *
#include ***** ** * *****  
#include * ** * *  **   * 

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

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