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

#include <string.h>

int main()
{
* ** * **  *  **** **  * ***    lenght1,lenght2,c;
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}
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Hidden content!
#include <stdio.h>
#include *** *  *******  
#include *  *** ***  *
//#include <ctype.h>
#define n 100
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{
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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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 * * * * *  *  **    *    * *  * 0;
}
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#include *** *** **  *   *
#include   ** ***  ***
#include   *     ** ***** 

int main()
{
 ** **      *  ** **** * *  *   * prefix[100];
  ***   * ** ************* *    word[100];
 ********  **    *   **  **  * ** * * %s", prefix, word);
 * *** *      ** ***  ***  ** * i;
******* *** *  ** *** * ** **  = 0; i< strlen(prefix); ++i)
* *  **    *  ****** * * *  
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 **  * ** *     *  ***  ***   * *   *  ****** *   * *** * **
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*** **** *   ******  * *** ***  *  ****  *****  * *  **  
* * * *   *  *     *** * * 
*** **     *** *** *  ****** * ***  is a prefix of %s", prefix, word);
   *    *** * * *  * *  * *   *   0;
}
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#include  ** ******  * 
#include  **    *  *  ***  
#include ** ** *  * **** ****

int main()
{
 *   * *  * * *  *  *** *  prefix[100];
 **  * ** *** ***  * ** ***  ** word[100];
***  * ***   *** *  **     *** *  * %s", prefix, word);
**  *  * * ** * *******   **  i;
* *  ***  ***  **** *** * ***   * ** = 0; i< strlen(prefix); ++i)
    ***** * *   *  *  **
 ** *  ****   ** *    *   * ******  * *  ** *  * ****** * * **  ****** 
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 ** *  *   * **** *  *  *   *    ***     ** *   ***  *       ****** *** *    * ** ** ** *  ** is not a prefix of %s", prefix, word);
 ** **  *   *     *  *     **  **   **  *  ***  ****   * *  **   * *  * *    ***     ***  0;
**** * * **   ****   ** **  ****    ***  *   **    ** **
*   *  *  *  ** ** * ***
   * *** ** * ****   ** *   **   ***  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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