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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#include <stdio.h>

#include <string.h>

int main()
{
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}
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Hidden content!
#include <stdio.h>
#include ***  ** **  * **
#include    * **      *
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}
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Hidden content!
#include    **  *  * *
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int main (){
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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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#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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 *   *****   *** * ** **  *   i;
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  *   **   *      *  **  * *  * 0;
}
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Hidden content!
#include ***   ********
#include * * *   * 
#include * ***   *** **

int main()
{
****** ** * *  ** **   *   *  *  prefix[100];
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 *  ****    **** ** ** * ****** 0;
}
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  * * *   *** ** *

int main()
{
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*** *   *  *** *  **  0;
}
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