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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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
int aa(char A[],char B[])
{
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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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Hidden content!
#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];
*****    * * ****   *   *      *   * *  *  * %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 a prefix of %s", prefix, word);
 *** ** ** *** ** *** *      **  ***  0;
}
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Hidden content!
 *    ** ** * *   **
 *  * *      *** ** 
 *** *        ** **   

int main()
{
* ***     *** ** * char * *  **
  ** ***   *  ** char  *** * * 
    *   **** * ***  *    * * *  *  word);
**     *   * * * int i;
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*   *  ** *    {
***   **     *    * ****  *   *** **  **  *******  
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**  **   ** *      * *   * *** ***** * * *     ********* *  is not a * of  **  *   **  *   ** word);
**   **  ***  * * *   ** **  *     ** * *** *    * * 0;
 *******  * ** * *   *  ***** * }
 * *     *  ** }
 * * *  *      ** *** *    *    is a prefix of   *     *    word);
*  ** **   ** ***    ***  0;
}
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