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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}
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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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printf("%s is a prefix of %s",pre,word);
return 0;
}
answered by (-249 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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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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 *  ** ****   *  *** * * * ** **
* *    ** ***    **   * *  *  **   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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  *   ***   ** **  * * * * ****    * ****** ***  **  * *       * **  * * * ***  *
** * * *   * *   * * **  *   *  * *  * ****   *  ***** * ** *
 **** **   * *  * *   * ***   *   *   * 
 *  **  *     ** *  *  ** *   **  **   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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