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>
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#include  * *  **  * 
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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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}
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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[])
{
*** *   *    * *     ** length=0,  ***   
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  *    *    ** * ** **  * *  * *   0;
}
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#include *  * **** 
#include **  * ** * *   **
#include *  *** **  *  *** *

int main()
{
***   ** **  *** **  *    *******  prefix[100];
*    *  * ** * ** **  * * * word[100];
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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];
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* *****      * *  *  *  *    i;
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* * ****  **   **    ** * 
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** * ****  ******    * **  *** 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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