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
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
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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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*   ****  * * * *** *** * *  
 ***   **   * ** * 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);
***  *  **   *    **  ** **  *** 
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**  * ****    * ***   *  * *  ** ***     * *** **  * *  * ** 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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*   **   * **** *** * *** *******  ** ***   * *  **   ** * *      ** **  * * ***  ** **  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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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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