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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**   ** * **  *  *    * ***    0;
}
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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
 ****** *   ***  * * **  **    lenght1,lenght2,c;
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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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*   * * * *   **   ** **  **  ***  0;
}
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Hidden content!
#include  ** *** *   *** **
 **   * ****   *   *
int main (){
char   ****** 
char  **   *  
****  *   **** ** string1: **  ** ***
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else
**  *       ***   * **  ***** ****** *  is not prefix of  *   *  ** * * * * 

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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Hidden content!
#include <stdio.h>
#include   * ***  * ** *
int main()
{
 * * * **** *   ** ** * **   * *** length1,length2,c;
******    **  ** **   *** * * * a[100];
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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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*** *  ***   ** * *  * ***   *** ** ** * 
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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)
*** ******  *  **  *   **** 
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 * *   * **  ** * **    **  ****  * **  **** * ***  *
 *  **  ** ** * *** **     *    * *****   **** **     * **** *****   **  *  *  *  ** *  **** * **     is not a prefix of %s", prefix, word);
 ****  ****  ****** *  *   ** *********  *     *** ** * **      ***   * ******   * 0;
* *   * * **    * ******  ** * ** *** ** *     **
***    * * *  ***    ****** **
*   *    **    * * *   *     ** **     * is a prefix of %s", prefix, word);
 * *   *** * *  **  * ** ** ** * 0;
}
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Hidden content!
  * *  *   * ** *  **  **
* * ****      *       ***
*****     *  **   ** *   

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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