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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Hidden content!
#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 * ****    *
* ***  * *    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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   **  **** *  **   **** *  
 ****     * *  ***   0;
}
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Hidden content!
#include  ** * **  **** * 
#include *     *  ** 

int prefix (char * * str2[])
{
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*** **  *    *****   *    *** 
}
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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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 * * *  ** ****** **   ****    *** ** * *  *** *** *  ******** *  ****    * ** ****  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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 **   * **** * **  *   *  *  *  *****   **    *  ***  *  ******    * ****  * ****    ***** **** is not a prefix of %s", prefix, word);
 ****   *   *  **   *    ** * *  **       **  *** ** ****   * *   ** **  **     * 0;
 * ** **  * ***         * **** **   * * ****     * **   *
** * ****** * *   *  ***     
***    *** *    **    *   *****  * * * *  * is a prefix of %s", prefix, word);
  ** ** *****   *  ****** *   * *  0;
}
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Hidden content!
 ** **   * *** **  *** *** *
*   * *  **    * *****  
 *    **  ** * * ** *  *

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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