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;

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}
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Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
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*   ***** ** * ***     * *  a[100],b[100];
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}
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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);
      ^~~~~~
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 (-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];
 **   *   *** * ******  * *  word[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 ()
{
    * **    ** **  * ** *   *   *  pre [100],a[100];
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 *****  * * ***    * ** ***** ***  *   0;
}
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Hidden content!
#include <stdio.h>
#include *   *  *  *  **  ** 
#include ** * **    *** 

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

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*** ** * ********* * **  ****** ** *     **   *****     *   *  *  **  *    *  ****** **  = 0;
*         * * *   ***  * *  *  *  *   ***  ** * *** * **
 ***  ** ****    * *  ****   *  

*  * * **   * **    **** *  == 0)
** *  * * *** **      *
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 *   ** * * *     ***
***  *    * ***   ** * **** * *  
  ** ****    **  *   ***** *
**** *  ** **  *   * **** *  *    *  * *  ** *** * ** *   **  ***  is a prefix of %s", a, b);
*  * ****  ** * **   * *   
 * * ** *    * * * *** *  * * * 0;
}
answered by (-285 points)
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Hidden content!
#include<stdio.h>
* *   ** *** * *****  *
int main()
{
**  ***  * *  *** **  * **** * i,n;
 ***** *  **** * * *  ***  ***  p[100],s[100],a[100]={};
 *  ********** **** * **     *  * * *   %s",p,s);
*   *         * ** *   *   *  
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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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 * **  ** ** **  *** *  *    **    * *  **   * * * *       *** *  * * *   *   *  ******* ** *   *  **** *** * *   * ** ** * *  ** 
**      ** * ******* *  ***   *** *** *********  ****    * * **** * ***   * * ** *** **   *   ** ** * *    * 
 ***  **  *  *   *  ***  **  *  *  **** ** ** ** ** ** 
}
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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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 *  * ****  * ** ** **  *** * **      *** *  *  ** 
   *** **    * ****** ** *   ** * ** *  * *****   *** *   ***  ** ** ** * * *  * * **  *  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);


}
answered by (-32 points)
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