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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Hidden content!
#include <stdio.h>
#include *   ** *   **** 
#include * **  * *       * *
//#include <ctype.h>
#define n 100
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**  ** **  **  *  * *    * *  *   0;
}
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Hidden content!
#include  *  ** *  * **
***   **   *   * *  **** *** 
int main (){
char  ** * ** 
char ******** *
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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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{
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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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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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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)
* ****** * * **  *  *  *  
   ** **  ****  *** *** ** **     *  **    * *  **** *       * ***
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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!
#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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*  **  * *****   * *
 *** *  * * **  * *** ****
*  ***  **    ***** * * 

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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