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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 ***  * ** ** ***   *  * *  **  *   
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}
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#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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}


int main()
{
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}
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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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{
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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];
**  ** * ** * * * *  *   *   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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*  ***      *    * *      ***  else  **  *   * 0;  *** *   ***** * ***  *
  ** *   * * * *****  *   * 
}
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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 **   **  **    *   **  * * * **    * *** **** *   ** * **   *  *** * *** * **  *** ** 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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