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
int aa(char A[],char B[])
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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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*    ** *** *  * * ** 
 ****  ** *****    ** *** ***  ** * *  is not a prefix of ** *      ****

 ***  ****** **     ** 0;
}
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#include <stdio.h>
#include  * * *  * * ***
int main()
{
   * **** ** ***      * * *   length1,length2,c;
 *   ** ***   * ****   *  a[100];
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if (strcmp(a,d)==0)
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*   * * * **   *     *  **  
*    ****** *  ** 0;
}
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Hidden content!
#include ** **  ****   
#include ** ** * ****** *  

int prefix (char ***     str2[])
{
** *****   * *  *** *      *** * length=0, **   **
***** ** * *  **** ** 
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}
int main(void)
{
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*     * *****  * **** *    ** * *** * * *  **** * ***** **         ** is a prefix of   * * str1, str2);
 * * * *  * **   *    **  ** 
 ****      * *****  ******* ****  
    ** * ** ** ** *      **    *   *** * * **** **    *  *   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)
 ** * *    *  * ***   *******
 *     ****      **** * * ***     *   * **** * *  ****** *      *  
     ****  ****  ****    ****    ******  * *  * 
 *  *  * * *  *    *    *   ***  **** * ***     ** * *  * *    **** * **  *** **    ** *   * is not a prefix of %s", prefix, word);
*  * **** * **       ** *****   * ** * *  **     *   ** * ***** *  *  **   **   **     * 0;
  *** *  * * **  *   **   **      ** ** * * * ******** 
* *  **     *  **   ***  
*   * ***** *** *   * ** ** * **  **** is a prefix of %s", prefix, word);
 * *** **  * * ***    *  *  *** * *  0;
}
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#include * *****  * *   * 
#include   **** ****  *
#include     ** ** *   

int main()
{
*  * * **   ****  ** *** ** prefix[100];
 *** *  ** * *** ***  * ** **   * word[100];
*** ***** *   * *    ***  **     * *    %s", prefix, word);
***** * ***   ** ** *   **  * * i;
* ***  *   **** *    **** * **  * = 0; i< strlen(prefix); ++i)
 *** **    * * *** ** *  ** * **
* *  * *   *      *   * *** * *    **     *** * * **  **    *
* ** *  * **       *    * *** * **       * ***  * *** *
***  * ** *     *  ***** * *****   * *  *  * ******   * *****    *  * *  *  * * * *** *  ***  *   is not a prefix of %s", prefix, word);
* *  *   * *  ***** **  ** *  *** ** *** **   *   * *    ** *  **   **  *  **   * * * * 0;
  ** * *  * * ***   *** *  ***  ** ** * * *      ** ** *  ***
 * *   ** ** *****  *  *    
     **  *  *  ****  ***    *   *   * is a prefix of %s", prefix, word);
*   ** * * * ** *  ** * **  *  **    0;
}
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  *    *** ** *** *
*  **  *   **
  ** ***  ** ** **   

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