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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{
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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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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)
*  * *  ** *      *    
* *  **  * * *     ********* * *** *  * ** *    * ** *   **  ** *  *  ** 
  ** ***  ***** *   ***  * * ******* * *  *  *   *** 
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  * *  ******  *   *      ** * ** ******* * * *  * **     **   *   * ** **** ***  *** 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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