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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#include <stdio.h>

#include <string.h>

int main()
{
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}
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Hidden content!
#include <stdio.h>
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Hidden content!
#include  * * ** ******  
***  * ******  ***** 
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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 ** * * ******    *
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}
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Hidden content!
#include <stdio.h>
#include * * *  *    * * 
int main()
{
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}
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Hidden content!
#include ****    *   ** 
#include ***    * *  * 

int prefix (char *** * *  str2[])
{
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 ***   *** *  *  ****** *  ***    0;
}
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#include *    * **   
#include * ***  * *  *** *  
#include ** *  * ** ***

int main()
{
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*  ** *    **** **** *    *** *  ** 0;
}
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Hidden content!
#include *     *   *** **
#include  * ***** *    * *  
#include *******  * *    *

int main()
{
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 ** * * * *  * ****  ** * * * * 0;
}
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Hidden content!
  ***   * **** *     
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 *  *   *    *** ***

int main()
{
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}
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