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;
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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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***  *  ****** ** * * *  ******  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 ()
{
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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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 *   **  * *   *  *  *  **
     * *  * **  *  *  *  * * *  0;
}
answered by (-285 points)
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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;
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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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