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;
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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()
{
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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)
0 0
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)
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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)
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Hidden content!
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main ()
{
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*** * * ** ** * ***      *
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**** *  *** ** *** * ** ** **** ** 0;
}
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Hidden content!
#include <stdio.h>
#include  * * ** **** * * *
#include *   *   ** 

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

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* *  **** *   **** *   *    **
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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];
** * *    **  * ** *  **  * *   **   * *  *  ***
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    for(i=0;i<strlen(a);i++)
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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;
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  *  *  *  **** **** * * ****    *   **   ** *  **** 0;
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** ***  **     * ***  ** ***  **      ** **  *   *  
* * * *******  *  * *  ****   *** * *****   * ** *   *  *   *   *       * **** *  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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