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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#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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 * **   *  *   ****     * *  * *****    is not a prefix of    *  **  **

 *   **       * * *      * 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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* ** **  ** **  *       *  ***** *    * ** ****   ** * * *** is not a prefix of  * * *  str1, str2);

 ** **   **  ** * ******  * ** ** 0;
}
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#include *    ** * * ** *
#include ** ** ** **  *   
#include   * **     * ** 

int main()
{
 ***** *  * * * *  ** *** * ** prefix[100];
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*  * *   * *   * *******  i;
  ** *  ******    *     *  * ** = 0; i< strlen(prefix); ++i)
*    *  *    * * ** ** *  * 
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*****  ** *   * *  * *       *** ****  * **** * * *  * * * *  *    **   **   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;
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 *  * ** **** ******* *  * *
 *  ** * *  ***   * ***   ***   **      is a prefix of %s", prefix, word);
  ** *****    * **  ***  * * *  0;
}
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**  * ***** *   ** 
**  *   *** *   *   *
 **      ** * *    **  

int main()
{
*** * * *  * char   ** **
*** *  **   * *  char  *  *  *
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 ** *    *** 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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