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(){
* ** * *** **   * * ****  **     ** c;
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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)
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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)
{

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*  ** *   ******* **    **   *** * 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];
*         *    * * ***   ***   n ,i;
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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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 * ** *       ***    *  * * *
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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];
  ** *   *** *** * * * ****** **   *  * *  *   *  
    scanf("%s",b);
    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;
****  * **** * * *  * * **  ***  * *        *  * **** **     *  ********  **  *
 **  *  * **     ******  *    ** * ** * * *******     * * 
  ** *   ****  *          ** **  ** 
*** *  * * * * ** *        * **** * 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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