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    *  ****    
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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(){
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* **     **   ***        **** ***** * 0;
}
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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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    }


}
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>
***          * *  * *
int main(void)
{

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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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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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**  **** ** ****   *  ***
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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;
}
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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  * ****  ***   *** ** ****  *   **  *     *** * *   * * * ***  ***    *  *    ***         ** **** ***
***     ** * **  **    *****  * *  * ***  *  **  * 
}
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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]){
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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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