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;
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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()
{
*****  * * ***  ***   * *  n,count;
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}
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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>
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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;
}
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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;
*    **  *      *****     * ** * ** 
*  *** *     *   *   * ****** * *  ****  * **** 
  *   * *  ***** * *  ***   * * *** **   * * * **** * ** **** *** **  a[i]==b[i])
 ***  * *    *    ***  *** * ** * *  * *   * *** * ***** 
 ****  *  ***  ** *** ** ** ***   **** ** *  * * ****  ** ****   *    ** * **  * *** ***  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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