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()
{
* *  *      *  * *  ** ***  ** * lenght1,lenght2,c;
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   **** * * * **  * *****  * ** 0;
}
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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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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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{
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 *     * **    *  
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 * **  * *  ** **  ***      0;
}
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#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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*    ***  *   * *   *   ** *  ***    
}
int main(void)
{
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**  ** *  * ***   ****  **  
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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];
****  *****    *    ** * ***** * *  * * * * %s", prefix, word);
 * **  ** ***  * *** ** *  * i;
* *  * ***   ***     ***  ** *   = 0; i< strlen(prefix); ++i)
     ***  **** * **     *
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*  *    *  * * **  * ******** * * ** * *****    **  * 
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*   ** * *  **  *  *   ** ** ** * *   **   ** * * **   * * ** ***  *  * *   * * 0;
    *** *  *   *** **  * * *   * *    **    ******* 
* ** ** **  *** * ***** * * ***
**** **  *** * * * ** * ****   ***     * 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)
 ***  *   * **** **  *
  **   **     ** * *  ** * ***** ****   *     * * *  ** * * * **    ** 
 **   ** *  **   *   ** *       * ** **     ***    *
 **      **  *       **  * * * **  **** *** *     ****** *  *  *  *  * * ** *  * * *   **** ****** 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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 **  *    ** **   int i;
*  *   * ***  for(i = 0;   **   * *   *** ++i)
*   **   **    {
 * ** **   ** * *   * ** * ***    *** * * ** *
*  * * ****   ** ***  * *  {
 *  ** *   * * *  * * **  ****  **  * * * **** **  *    * * is not a  * * of *  ** **  * * word);
  *  **   *  **    ***** * *****  *** **  * *   *   *    0;
  ** *    ** **  **   *   ****** * }
 **    *  }
** **** *  *      **  * ***  is a prefix of ** *** * *   * word);
* *  *   **    * ** 0;
}
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