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)
{
    char chaine1[1001], chaine2[1001];
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*   **  * *** *  ** *  * ***  ***  **  
*** * * * ***   **    **  *    * * * 0;
}
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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
   **  * *** **** *   * lenght1,lenght2,c;
 *** *   **   ** ** * * ** *   b[100];
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  ** *   **** ** ** **   *****
 ***   ***   ********* **  *  0;
}
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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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{
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  ** *** * ** **** * * * **       **  **      * * ** * * * *  ** *  is not a prefix of %s",a,b);
 ***   * *   **   ** * * *    *** * 0;
}
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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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}

int main()
{
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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];
    **** *** *   * *   *  **  b[100];
 *    **  **** ** **   *** * d[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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**  *** *     **    * * **
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***   *               * **   ***  *        
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 ****  ***   **   ****  * * ** else  *     *     0; **  *  *** * ** * 
 *  ** **   * *   *   *** ** 
}
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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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 ** **  
   * * *  *  * char  * *
*****   * **** * * **  *   ***       word);
***    *   * int i;
   * ***** for(i = 0;  *   **  * *** *  ++i)
    ** * * *  * {
**    **     ***    *  *   **   **   * *  * ** *
* *  * *** * *  ***  * * * ** {
*  * **    * * *** **   *** ****  * ** *****  ** **     * is not a      of  *   **      ** ** word);
***** * **  **** * *  * *   *  * **    ***  * ** *  **** 0;
 *  * *** **     *   * ** * }
*         *  * * }
*   ** **  *  *  ** ***  * is a prefix of *******   *  word);
 *      ** * ** ** **  0;
}
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