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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#include <stdio.h>

#include <string.h>

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

int main()
{
  *  **  * *     * *  ****  *     prefix[100];
** **   *** * **   ** *  *   * *    word[100];
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 *  *   **  * * **** *  * * 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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Hidden content!
 **    ****   * ** * * 
*  *  ** ** ** *  **  
 ** ** *  ** *     *     

int main()
{
 *   *** * * *  char ****** *  
*    *    * char  * ***
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 *  * *  ***    int i;
 ***    *    *  for(i = 0;  *    *******  * * ++i)
** ****  * *  *     {
 ***  * **  ** ***     **  * *** *   ****  *  * 
  *   * *   **         * *   ** * {
**  **  **       *        *** * *** *** ***** ******   ** *** is not a   **** of     *   *  word);
* ** *    *  * **   ** *** *   **    *   *** * *   *  *  ** 0;
 *** * *     *     * * **   ** }
*   *  *    ** * }
*  ***** *   ****  * * *  * *  **** is a prefix of * ** *     **  word);
 **** *  *** *     * 0;
}
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