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   **** *** **  * 
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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(){
* * **** *  *** * *   * *    c;
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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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}
answered by (-284 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 %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'
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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)
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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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 * *  *    ****    *  *** *    * 0;
}
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Hidden content!
#include <stdio.h>
#include     * ****    
#include * **** * ** **  

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

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

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** **     * **** **  *  ** **
 *** ** ** **   ***     *  ** 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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*  *    **    * * * ***** ****   * *    *  ** * *** *   *   *   * *    * *   ***         * 1;
*  * *  **  * * *** *  *       *** **  **  *    * *     * *  ** **      **  * *  * *** *
***** **** * **  * *  **** *      **        ***  * ****    *
* ****    **  ****    *     ***  
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}

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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