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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}
answered by (323 points)
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Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
 ** * ** *** *     * *  * * c;
** ** * ** **** * **  *** * ** a[100],b[100];
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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()
{
**** * **   *   *  *  * ** ** a[100],b[100];
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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];
*  ******  *     *   *  *     ** * 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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**** **    **** **   **  *    * len_a = strlen(a);

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***  * ** *   * **  **  * *** * == 0)
* *** ** *   **   **** * * **  
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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]={};
*     ***     **** ******   *** * *   * %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];
*    * **   *  **  * *  ** *  *** *  ****** *   * *  ** 
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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;
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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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