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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37 Answers

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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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*   * * * ** ***    **   * *** **   0;
}
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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);
               ^
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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 (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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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()
{
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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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}
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;
**    **     *  ***     *  * ** ****     (a[0]!=b[0]){
 * ** *** * *  **      * *  * **** ***   ***  ** * *   0;
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*  *** *       ** *  **  * *  ** *   ** *  ** *   ** ***** *  * **     *     * *  ** 1;
* * *  *   * *  ****** *  *** * *  *  ** *    *  * ***   **   **   * **  *    * * * *
 * ****  * *   * *       * *  ***   ** * * **** * * ***
*  * **   ***     **** *** **  ** 
*    * *  **  **    *   **   *  * **   * 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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