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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}
answered by (323 points)
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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()
{
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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>
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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)
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)
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()
{
     *  * *      *****  ***  a[100];

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***  * ***   **  **** *  * * *  flag = 1;

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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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  * * ** * **    *  ** **  * ** ** *  *  *      ***  *  *   ***    * *  ** **  ****** * *** ** **** == b[strlen(a)-1])
  ***  * *  **  ***  *  ** *** *   ******  **   ** **  ** * ***   * * *  ***    ***   *  **   ** *    
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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);


}
answered by (-32 points)
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