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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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 * * * ** *    *  *
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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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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[])
{
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*******    *      **  ****     ** *  *   *  *   *  **   ***         **** is not a prefix of  *  ** * str1, str2);

 * *      * *** *  *   ***    *  0;
}
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#include  * * *  ***      
#include * *   * * ***
#include **  * * ** * 

int main()
{
   * * *  ***  *******    * * *  prefix[100];
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*  * * * *    **  * ***  *    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];
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*  *  ** * **  * * ***** *   i;
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** * **     **   **    *  *  *
  **  **  *  *   * ***** *** * *** **  ** is a prefix of %s", prefix, word);
*** ** * * ** * * ***  * ** * 0;
}
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Hidden content!
 ** * *    **   **  
 ** *   *    * *    *
* **  *     * ** * * *****

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