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;
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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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****  *   *   **** 
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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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**  *** ** **  *     * *  *   *** d[100];
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 *** ** *   **  *  *   * * **  *   *    *      **
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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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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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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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