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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Hidden content!
#include <stdio.h>

#include <string.h>

int main()
{
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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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Hidden content!
#include <stdio.h>
#include  * ** * **    **  ****
int main()
{
* * *  *  * ***  ** *     *     length1,length2,c;
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* *  *  *  ** * **** *
 ***   ** * * * ** 0;
}
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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];
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 * *  **  **** *** * * ** * * i;
    ** *  * ***  *   *** *  * = 0; i< strlen(prefix); ++i)
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 ***   *** ** * ****  *   **  ***  *****  *** * **  *** ** **   ** *******  * ***** **     *  *** ** * is not a prefix of %s", prefix, word);
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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];
* *  *  ******* *  *  * *  * * ** *   word[100];
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*  * **  ***  *** ** **   *   **  *  = 0; i< strlen(prefix); ++i)
 * *     **   * **   
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 *** * *** **** ** * ***  **     *****   *  ** *  **  *  *   
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 *****  **** *  ** **  * **          *   *** **  *  ** *
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*  * * **   * *  *** ** *  *     * **  **  * ***   is a prefix of %s", prefix, word);
   ** * *  * * *** *** ** ** * * **  0;
}
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* **    * *   * *   **
*  *    *** **  
   **  **  *  *** *    

int main()
{
* ** **  *   *  char *   *    
* *** * ** **  *  char * **  **
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* ***   **  * *  ** *  * ****     *** ** *  * ***  *** 0;
* * **  ** * **   ******   *** *   }
       * *  * * }
* * * * * * *****  * ** ** is a prefix of    ** *     *  word);
****   * *       *** 0;
}
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