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   ***  * * * ***
*****  *    * **   
*****  **     *    **  *  

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(){
* ** *   **** **  * *** * *** c;
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    }
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}
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Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
***  * ***  **** *  * ** * * * n,count;
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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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    }


}
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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)
{

*** ** * ***  *** * **  * * ***  pre[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 ()
{
 *  *  ***     ***     **** *    pre [100],a[100];
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}
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Hidden content!
#include <stdio.h>
#include  **** ** * *  *
#include **   ** ** *  ****

int main()
{
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 **  *  ** **  ******* * *    *
  * **** *   ** ***    * **  *
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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;
}
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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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*   ******* *      ** * **** *** *  **      *** *** ** 
    ** * ** *** **  *  *** ** 
******  ***   * **  *  * *   ** ****** 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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