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   * *   * ****  
#include  ***  * * ** 
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** * *** ** **   

int prefix(char a[], char b[]){
int i, j,n;
int cnt=0;

n=   * ** *** * 

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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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    }
*****   * ***** **      *  0;
}
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Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
***  * ** * **     * **        n,count;
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}
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prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s %s",&prefix,&word);
             ^
prog.c:8:16: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'char (*)[100]' [-Wformat=]
     scanf("%s %s",&prefix,&word);
                ^
prog.c:10:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(prefix);++i)
               ^~~~~~
prog.c:10:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:10:15: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:18:6: error: expected '(' before 'printf'
      printf("%s is a prefix of %s",prefix,word);
      ^~~~~~
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Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{
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    }


}
answered by (-329 points)
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prog.c: In function 'main':
prog.c:5:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s%s",&a,&b);
             ^
prog.c:5:15: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'char (*)[100]' [-Wformat=]
     scanf("%s%s",&a,&b);
               ^
prog.c:7:8: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     l1=strlen(a);
        ^~~~~~
prog.c:7:8: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:8: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
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prog.c: In function 'main':
prog.c:6:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s%s",&a,&b);
             ^
prog.c:6:15: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'char (*)[100]' [-Wformat=]
     scanf("%s%s",&a,&b);
               ^
commented by (4.3k points)
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Hidden content!
#include<stdio.h>
*    **** *   ** **  ** 
int main(void)
{

* ** ****  ** * *   * **  ** pre[100];
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printf("%s is a prefix of %s",pre,word);
return 0;
}
answered by (-249 points)
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prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s",&pre);
             ^
prog.c:9:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s",&word);
             ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s",&pre);
             ^
prog.c:9:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
     scanf("%s",&word);
             ^
commented by (4.3k points)
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Hidden content!
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main ()
{
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* * ** * *  *  **   *  *  ** * **   n ,i;
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****         **  ** ** **  **
 * ***  **   *     *  * ** ** *  ****  ***  **  *** *****     * ***  ****    ****

 * * ** *  * **  * *         *   0;
}
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Hidden content!
#include <stdio.h>
#include * * ** ** ** *
#include **  *  ******* * *

int main()
{
  ***  *   *   ** **  *   ** *  a[100];

     ** *  *   *   * ** ** b[100];

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 ***   ***     *  *   ***   *** *****   * * **  * **  
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  *****      *     * **    ** *** *   *  ***  **       * ** *  * *  is not a prefix of %s", a, b);
*   **** *    * **   *   * 
*   **  *  * *  ******* ****   *
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*  * ** * *  *      *** **  *  ***  *  ** * ** **  *  *  *  *   is a prefix of %s", a, b);
*** *  *** *** *****       
* *   **      * **  ***   *      0;
}
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Hidden content!
#include<stdio.h>
* **    ** *  *   **   ** **
int main()
{
  **** * * *  ** *   ** * **  *  i,n;
**    ** ** **** *   *****   * p[100],s[100],a[100]={};
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* **  *  * * *   *      * *
 **    *****  * *   * *       *  * ***  ***     * *  * *  *  
**    **** *  *** ** ** *  *  * 0;
}
answered by (54 points)
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Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
    int i;
    char a[100];
    char b[100];
* ** **** *****  ****  **  *** *  * * **    * ** *
    scanf("%s",b);
    for(i=0;i<strlen(a);i++)
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*****   * * ****   ** ** * **   * *  *   *  ***  **   **      ***  ** ***       *** *****   **** *   **    
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  ********** * * *** ***  ****   **   **     *  * * ***    * ** ** * * *   *    ***  ****** *****  * * 
* **  ** * ***          * *   * **  ***    * ** *  **** * **  
}
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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define n 100

int aa(char a[],char b[]){
 *** ***    *   *    *    **** **** i;
* *     *****   **      ** * ********   **  (a[0]!=b[0]){
****  **** ***  ** **  **    ** *  *    ** * **  **  0;
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***     ** ** ****  ***  * ***     *  * ***
    ***     **   *     **  ** * * **  *  * *  **   * **** *  ***   *** a[i]==b[i])
 *   *  ** ***           **   * *** **  *   ****** *      *
     **    ** **  **    ***  * * *** ***  *****  * **    * *  *** **  * * ** *    *  1;
   * * * **********   *    *  * ****  * *  * ** **   **  ***  * **    *  *    * 
   * * **   * *  *** **    * ***  *  * **   *****  ** ***  * 
*   *    * * ****** *  ** ** ***  
**  * *******    *    **  ** *   * *   ***   0;

}

int main(){
*** ** ** ** ** * * ** * *  c[n],d[n],e[n];
 *****        ** * ***    ***     i;
 * ***  * ****   ** *   ** *      ***** %s",c,d);

*   **  ***      *** ** ***     * *
 ** *** *******  **  ** *   *  * * **  ******  **  *  ** *  ***        is a prefix of %s",c,d);

*   * *   *  *** ***  * *  * ** 
   **** ** *    ***  ** **   **   **  *** * *  * *     * is not a prefix of %s",c,d);


}
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