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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}
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>
*  * ******  * ****
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)
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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}
answered by (-32 points)
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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);
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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);


}
answered by (-32 points)
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