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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}
answered by (323 points)
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Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
* * * *   *****    *   * c;
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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)
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 (4.3k points)
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Hidden content!
#include<stdio.h>
*  ***   ** ***** 
int main(void)
{

**   ** * ******       *     pre[100];
 ****** * **** *   **** 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)
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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()
{
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* *     *** ** ********   

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