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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#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
int aa(char A[],char B[])
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}
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Hidden content!
#include  *  *   **  ******
* ****  ** ***   ** *  
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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 * *  ***  *    *    * * 0;
}
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#include <stdio.h>
#include * *  *  **  **
int main()
{
     ** *    * * ****      **    length1,length2,c;
   *** * * ** *****  *  * ** ***     a[100];
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*** **  *** *** ****  * **
 **   ** * * ** * ** 0;
}
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Hidden content!
#include   *  ***** * ****
#include   ******  ****  

int prefix (char * **  *  str2[])
{
* ** *    *   **   * *********  length=0, ** *****
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}
int main(void)
{
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******* * ** ***      ** ** *  ***   **    *  *****     ** * * **** **  is not a prefix of   **** **  str1, str2);

* *   * **   * * *    * ***   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 a prefix of %s", prefix, word);
  **  * *   * ** * * * **   *  0;
}
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Hidden content!
#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);
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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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