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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{
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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
int aa(char A[],char B[])
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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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}
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#include <stdio.h>
#include  * *    **  * 
int main()
{
   ** *  **   * *   **  * ** length1,length2,c;
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}
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Hidden content!
#include ** **  * * *
#include * *  ***  * ** **

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

*****  **  ** ** **   *   **** *  0;
}
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#include * **  *** ****
#include  ** *****  *   
#include      * *  * *  * 

int main()
{
  * ***   **  **  *      * ** prefix[100];
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 *  ******  * * ****     **     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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 **       *    ***** * * 
* *   ***   * **  * * * ** *  * ****  * **** 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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