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 (11.3k points)
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#include<stdio.h>
#include<string.h>
char prefix(char string1[],char string2[])
{
    int i,s;
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}
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{
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}
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#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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}
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Hidden content!
#include * **     ***** * 
**  * * *  **    ***   *
int main (){
char ****** 
char  **** ***
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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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 * * **     **  **** *** 0;
}
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Hidden content!
#include <stdio.h>
#include *   *** *  ** 
int main()
{
 **  *  ***  ***    ** *  * * length1,length2,c;
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     ****  *** * **   * **
 * * * *  **** *** 0;
}
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Hidden content!
#include *****   *****   
#include  **  ** **  *  * *  

int prefix (char    ***** str2[])
{
*** **    *      ** **  * length=0, **** *
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 ***        * *  **  * *****  * *   **** ***** * ** *   * *    is not a prefix of ** * str1, str2);

 * * ****** **  ********  0;
}
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Hidden content!
#include   ** **   * *   
#include ***    *  * * *
#include   * * ****  **

int main()
{
* ****  *       * * ** *  ** *  prefix[100];
**** * *  ** *  * * ** ***  * * word[100];
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 ***  **  * *** **    *  = 0; i< strlen(prefix); ++i)
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  ** * *   * *  * ***  * *** * * *     **** ***   *  ** **
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**  *** * *  *  **    *******  ** **    **  *  *  is a prefix of %s", prefix, word);
***  ** ***    * ***  *** *    0;
}
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Hidden content!
#include    ** ** ** * 
#include  ***    * * ***
#include *       **** 

int main()
{
   * *  ** * * ****   ****     prefix[100];
*****  *     ***     ** **      * word[100];
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  * * *     ** ****** * ** 
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* *     **   ** ** * * *** *   **** **  **   * is a prefix of %s", prefix, word);
  *         * ** *****  ****  **   0;
}
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   *  ***    * * *** **
*    * *    ***   *   *  * * 
   *    *  ****   

int main()
{
 *** *  **   **  char  ***** 
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*   ***  ** *  * ** }
**  **   *  *    * * *** ** is a prefix of *  *    ** * word);
 ** *    *** **  *    0;
}
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