Final Exam 2 (20%)

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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

 

[Exam] asked in Final Exam
ID: 42299 - Available when: 2018-01-17 14:00 - Due to: Unlimited
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Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


int isprefix(char prefix[], char txt[]){
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}


char prefix[100],txt[100],i;

int main(){
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}
answered by (-286 points)
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prog.c: In function 'main':
prog.c:24:16: warning: too many arguments for format [-Wformat-extra-args]
         printf(" is a prefix of ",prefix, txt);
                ^~~~~~~~~~~~~~~~~~
prog.c:29:16: warning: too many arguments for format [-Wformat-extra-args]
         printf(" is not a prefix of ",prefix, txt);
                ^~~~~~~~~~~~~~~~~~~~~~
commented by (4.3k points)
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Hidden content!
* ** ** *   * ****  *   
* ******* **  ** ** **
char prefix(char string1[],char string2[] )
{
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}
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{
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}
answered by (-168 points)
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prog.c: In function 'main':
prog.c:37:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1001]' [-Wformat=]
   scanf("%s\n",&chaine1);
           ^
prog.c:38:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1001]' [-Wformat=]
   scanf("%s",&chaine2);
           ^
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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Hidden content!
#include<stdio.h>
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***   * *  ** **  ***
int main(void)
{
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 printf("%s is a prefix of %s",str1,str2);
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}
answered by (-304 points)
0 0
prog.c: In function 'main':
prog.c:6:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%s%s",str1,str2);
             ^
prog.c:6:15: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%s%s",str1,str2);
               ^
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str1);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:7:22: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
     for(i=0;i<strlen(str1);i++)
                      ^~~~
prog.c:7:22: note: expected 'const char *' but argument is of type 'int *'
prog.c:10:23: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
             {printf("%s is not a prefix of %s",str1,str2);
                       ^
prog.c:10:45: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
             {printf("%s is not a prefix of %s",str1,str2);
                                             ^
prog.c:15:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
  printf("%s is a prefix of %s",str1,str2);
           ^
prog.c:15:29: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
  printf("%s is a prefix of %s",str1,str2);
                             ^
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prog.c: In function 'main':
prog.c:8:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str1);i++)
               ^~~~~~
prog.c:8:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:8:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
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}
answered by (-140 points)
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Case 2: Correct output
commented by (4.3k points)
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Hidden content!
# include <stdio.h>
# include <string.h>
 int main(void)
 {
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    }
    return 0;
 }
answered by (-281 points)
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Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
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 ** *  *   * **   *** **   *  *
}
answered by (-323 points)
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Hidden content!
#include *** ** * ** **  
#include    **** *** *  
#include  **** ** * **   *

int main()
{
***   **    * * *  *  **    **** ** prefix[100];
* *** *    **  ** **    *   ** * word[100];
*  **    * *  *      **   *** *   *** **  %s", prefix, word);
*   *     * ***     * * * *   i;
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  **** *** *  * ** * ****  *  *
**** * *  * **     * *** *   *  * * ***   is a prefix of %s", prefix, word);
  **    ** * *** * ***    * * ***   0;
}
answered by (-254 points)
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Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
**** **  *   *     * *  **  ** n,count;
 * ** *  **      ***  ** ****  a[100],b[100]={0},c[100]={0};
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 * * *****  ******   **    
 * * **** * **  *   ****** ** 0;
}
answered by (-229 points)
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Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
 **  ***** **    * ******* * String[50],string[50];
   ********* *      *    * a,b=0;
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* *  *** ** *   *   *   ***  *  *** *  *  *  * ****

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*  * **  * ** *  ** * *   
  return 0;
}
answered by (-107 points)
edited by
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Hidden content!
#include <stdio.h>
#include ***  * *   **  * 
#include **  **   ** * 

int main()
{
 * * * ***  * **  ****  ** **  a[100],b[100];
  ***  ** **    * ****  *  ***  *    ** %s",a,b);
 *   * * *  **    **   * *  *  i,j,prefix = 1,len = strlen(a);
 *  *  *  *  * * *** * ****  ** = 0 ; i < len ; i++)
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***   *  *  * *  ***  ***** ** **** * * * **  * *  ***   
**   **   * *  **** ***     ***   ** *   * * ****   *  * *  * **  **   * **** ***     *     = 0;
** * *    ** ** ***   * ** *  **   *** *  *    *    *  *    *     *  * * **        *  ** is not a prefix of %s",a,b);
** **   ** ** * ** *** **  **   ***  **    ** ** * ** ** ** * **   ** * *** 
**   ***   ** **** * *** *** *  * ** * * **** ** *** * 

 *** *   *  ***  *      **  * **
**  * **   ****** **  * *   **** == 1)
**  *  *  * *    ** *** ****  **** ***  * ******   *   ***    *  **  is a prefix of %s",a,b);


 * *  **  ***   *****    **   * 0;
}
answered by (-255 points)
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