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 *** *  *      ** *
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#define n 100
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}
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Hidden content!
#include **** *    *** 
      * **   *  * ** 
int main (){
char  * ** 
char   *  * *
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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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**  *** **      * ** *  * 0;
}
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#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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{
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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];
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* ** ***  ** *** **   ***    **** i;
 *  * **** *      *   * * * = 0; i< strlen(prefix); ++i)
 *    * * *  **  ****       
 **     * *   * **  *** *  *** **  * * *   * * ***   ** ** **  *****   *
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    * *** ***    **  * * **** **   *  * **  *  *  *       
  ** ** ***  *** **** ** **  
*   ***    *  *  *****     *** ***  * **    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)
***   **** ** * ** ** ****   **
***   *      * **  * * *  * * *****  *  * *  * * *  * **** *  **  **  
 *** *  * ***  *  **   ***   ** **** * * ****  *****
 ***   *  * *** *  * *   *   ** *    **    **        * * *      ****** *  *  *** **    * *   **    is not a prefix of %s", prefix, word);
 *   *  *** *  * * * * *  *** *  * * *   **    **  ***  *    * ** *     *****  *   ** 0;
*     *** *  ** **  **      *  * ***  *    * * *  *  ****  
*  * *   *****  * ** *     
 **   *  *  **** *** ***** *  *  ******* * is a prefix of %s", prefix, word);
 ****     *   **  **   * *     0;
}
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 *****   *   * *   * ***
**  ** ***** * **   *    *
**   *   ** * *  * *

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