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;

n=  * *  * *  *** *  

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}

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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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    }


}
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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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*****     *   * ****
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    * ** *   * *** * * *  ***** 0;
}
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Hidden content!
#include <stdio.h>
#include  *   ** ** ***   **
#include ** ***   

int main()
{
  **         **   **       ** *  a[100];

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  * ****  * *    * *  *  **  *
* ***** ***   * * * *  **  *   *  0;
}
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Hidden content!
#include<stdio.h>
**** **  ** ** **  **
int main()
{
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***    *   *  *** ** **** *  p[100],s[100],a[100]={};
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  ** * * **   * **   *** *
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     ***  ****  *    * * 0;
}
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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;
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** * * * ***     *** **** ** * * **           **  * *  * * *      * * * *  **   ** *    * ** **** 1;
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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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