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;
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(){
    *** *  **    * * **  * ***  c;
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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>
*****  * ** * *   
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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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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 *** * *  * * *    ** *  ** * 0;
}
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Hidden content!
#include <stdio.h>
#include * * *   * ** *  
#include      **  **  

int main()
{
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 ** ** **     *  * ** * *   * i = 0;

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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]={};
 *** ****** * * *    ***  **    * * *** %s",p,s);
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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];
 ** *  *   ***********  *  * *   ** **    ** *** 
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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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