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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{
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}
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Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
  *  *  *** ** ***      * c;
** *    **   **  *  *   *** *  a[100],b[100];
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    }
**   *   *     ** ****  0;
}
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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: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()
{
*  **  **         * ***   **    a[100],b[100];
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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);
               ^
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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)
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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)
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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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** *   *   **  * * **   * ** 
****   * * ** * **  * ** * ** 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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**  *   **   * *   ** *** **** * **** * *** **    *    *** * ** ** *      *  **  * ***    **  *  **  
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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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***   **   ***  * *** *    **  ** * 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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