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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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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{
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}
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Hidden content!
#include   * ********* 
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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()
{
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* *****  ** * **** *   *  *** a[100];
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}
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Hidden content!
#include  ** *  *     
#include   *    * *  * 

int prefix (char ***  *  str2[])
{
* ******   **  ****     length=0, * *  ** 
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{
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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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* ** * *** * ****     * ** *  * = 0; i< strlen(prefix); ++i)
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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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* ****   ** ** * **** **** ** i;
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   * * ***  ***   * *   **** * * *** * *      *  ****   *
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  *     **** *  * * ***      *  **  ***  ** **   is a prefix of %s", prefix, word);
* *  *******  *      ***** **     0;
}
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Hidden content!
 * * **   **   *** *
*   *  **** *** *** *
** *  **** **   ** 

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