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[])
{
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#include <stdio.h>

#include <string.h>

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

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

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