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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}
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#include <stdio.h>

#include <string.h>

int main()
{
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}
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#include <stdio.h>
#include  ***    * *     *
#include * *   * ****  * *
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}
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Hidden content!
#include  ****  * ******
 *****   * ** ** **  ***
int main (){
char * ** *****
char **     * 
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else
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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()
{
* *****  **  *        ***     *  length1,length2,c;
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*** **   *     *    *   *  *
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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()
{
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  ** *   *    *  ******* *   **** * **    * ***      *  ** ****** *  ** *  *** 0;
 *    ***  * ***  * * *  ** *  *  **** * * ** * ***    **** 
 ** **   **** *   **** ****** **
    *   ** *** *      **  *  ***   *** * ** is a prefix of %s", prefix, word);
*  **  *** ** **  **** **   *    0;
}
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#include **  **  *   *** *
#include   *** * * *  *  *
#include  ** **  ***** *****

int main()
{
*  *   **  ** ** ***    *  *   prefix[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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