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
Available when: 2018-01-17 14:00 - Due to: Unlimited
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Hidden content!
#include  **** * *  
#include *    ****    * *
  ** **   ***     **  *
 *  *  * * *  * *      *

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()
{
* * *  ***    *  ** *   * * n,count;
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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 (3.8k points)
0 0
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 (3.8k 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)
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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 (3.8k 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 (3.8k points)
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commented by (3.8k 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];

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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];
           *  * ***  * * ***  * * * ****  * * **
    scanf("%s",b);
    for(i=0;i<strlen(a);i++)
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*******  ** *     ** * **** **  ***    *  *     *  *   *  * ** ****  ** ** *   *   ** ***  != b[i])
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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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  *  *    * **        *  * ** * * *** ***  *  **   * *    **
 **  **  ** ****   ***    *** *** 
*   *  *    *** *       *  ** *  ** ** * 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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