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(){
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}
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Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
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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'
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>
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int main(void)
{

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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];

 *  ******* *      ***** * * * b[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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 * ***      * * * *  * *  * ** ***** ****  **  *  * ***    *  ** ***** * ***     * *** *     ****    * ***
** *  ****** *    * ***  ** * ** ** ** ** **
}
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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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* *  **** * ****   **  ****     * *      * * ** **  *  *  
*  **  ** **   * *******  ** ** 
*** * *  * **  **  **   ** ***** ** ***** 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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