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 *  *   *     ****
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*   *    ** *   * * *   
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int prefix(char a[], char b[]){
int i, j,n;
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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);
               ^
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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*     ** *  **  ** *** *  * ** **  *  0;
}
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Hidden content!
#include <stdio.h>
#include * ** *  *       *   
#include *** ***       *

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

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*  * * ******* *   * ******   *** * ***  **    * 
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****   * *  *** ** *** **
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 **  * * **** ** *** * *****  ***   **        ***** * * **   * *  is a prefix of %s", a, b);
 ******* *   ** * *  * **
  ** * * *** *** ****  **   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;
}
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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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 * **      **** * *** ** ****   ** **  * ***** *    ******* * * * ***   *   ****   *   *
   * * **    **  *  * * *****    *****  * * ** *  **
*  **** * ** ** *     *  * * ****
 ** *  * **    * ** * *    * *    * *  * 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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