1 like 0 dislike
10.5k views

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

retagged by | 10.5k views

37 Answers

0 like 0 dislike
Hidden content!
#include **** * ** * **
#include ** ** ** *
int main()
{
* * * * ** * A[99],B[99];
* ** *** *** *** *** * ** * *** * * * **
** * * ** ***** ***** * * * *** *** ***
* * ** * * * *** * *** * ** ** **
*** * ** ** ** * ** * * *** ******** ** * *** is a prefix of %s",A,B);
** ** ** * * * * ****** *
********** ****** ** * ** * * * *** * ****** * ** ** is not a prefix of %s",A,B);
** * * **** *** * * * 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
* ** * * * *
*** * ** * * * *

int main(){
* *** *** * * ** * pre[100],str[100];
**** ** ** ***** ** **** ** * * * ** * * ** ***
** * * ******* * *** **** ** ** flag=1;
* *** ** * *** * * ** ** * * *** **** * **
***** * * * ** * ** *** ** * ** **** * **** *** **** flag=0;
* * ** * **** * * * *
* ****** * ** * * * printf("%s is a prefix of ***** ** **
* ****** * ** ** *** * *** printf("%s is not a prefix of ** *** * *
** * * * ** * * ** * 0;
}
answered by (-116 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include * * ** *** * *
*** ** **** ** * *

int main()
{
* ** * ** ** ** *** * ** * ** **
**** * ** * * * * *** ** 0;
}
answered by (-108 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<string.h>

int main() {
* * ** * * * * * a[100], b[100];
** * *** *** ** ** *** i,j,len,re=0;

* * * **** * * * ** ***** * ****** {
** * ** * ** **** * * ** * * ******** **** ** * * * ** *** * **
* ** * ** * *** *

* ** * *** *** ** ** * **** ***** *** a);
** * * *** *** * * ** * * * b);

***** * ***** * **** ** * * ***
*** ** *** * ** **** * ** {
* * * **** * *** * ** ***** * * * **** ** * ** ** **** ** {
* ** * ***** ***** * ** ** * * * ** * * * * *** ** ****** *** * **
* * * *** *** ** * ** **** ** * * * * ** * ** **** ** * * * ** ***
* * * *** * *** * * ** ** ** * ** ** * *
    }

* ** **** *** **** * **** * {
* ******* *** ** * ** * **** * * * * ** *** * ** * *** is not a prefix of %s", a, b);
*** * * * * *****
* * *** ** * * if(re==0) {
* ***** * **** * * * ** ******* ** ** * *** **** *** *** * *** *** is a prefix of %s", a, b);
    }
}
answered by (-120 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
# include <stdio.h>
# include ** ******
# include * * **

int prefix(char p[],char s[])
{
* * *** * * *** *** * * ** * ** * **
** **** * *** *** ** * * * ** **** ** * * ** * 0;
*** **** *** ** **** * * ** ***** *
** * ** ** **** ** *** * ** * * ***** * * ****** 1;
** *** * ** * ** * * **
* ** * ** *** ** * * ** ** * ** *** * ** ** 0;
}

int main()
{
*** * *** * ** * p[999],s[999];

** ******* * ** ** * **** ** ** * * ** *
* *** ** ** ** ** *** ** * * *********** ** *

* *** *** ** *** * ***** **
** * *** ******* * *** ****** *** ** * ** ** **** ** is a prefix of %s",p,s);
** * * * ** * *******
* * * *** ***** * ** * * * ** * *** ** * ** * * is not a prefix of %s",p,s);

* ** *** * *** *** * * * * 0;
}
answered by (-16 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include * ** * * *
#include **** *** *****
#include ***** ** * *
 int prefix(const char p[100],const char s[100])
 {
*** * ** * * **** * ** * *
** * * ** * *** ***** * *** *** ** * * * * 1;
* **** ** **** ***** * ** ** 0;
 }

int main()
{
* * * ** * ** ** *** **** *
* * * ******** * * * ** * * * ** ** **** *
** ** ** * * ** ** * * * *** ** * ***
*** * **** *** ** *** * * **
*** * * * * *** * ** ** ** * is a prefix of ** *** ** *
* * * ** ** *** * * **
** **** **** * * * ** * ** * * * **** ** * ** is not a prefix of ** ** * *



***** * **** * *** * * ** 0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:9:8: warning: implicit declaration of function 'prefix' [-Wimplicit-function-declaration]
     if(prefix(p,s))
        ^~~~~~
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include *** * * ** * *
#include <string.h>
int main()
{
* ** * * * **** ** ** a[100],b[100];
*** * ******** * * ** *** * * %s",a,b);
***** ***** * * *** * ** n=strlen(a);
* * * * * * * *** i,prefix = 1;

*** *** *** * * **** ** * i<n; i++)
* ** ****** *** ***** * *
***** * * **** **** ** * * * ** ** ** * ** != b[i])
*** *** ** ******** * ***** * * ** *
** * * * *** * * * ** ** * ** *** **** *** *** * * * **** * ** *** = 0;
*** * ** ** * **** * ******* * * * * * *** *** * ** **** * * * * * is not a prefix of %s",a,b);
* ** * * ** * * *** ********** * **** *** * * ***** * *** * *
* * ** * * ** ** *** ****** * * * *** ** * ** * * * **
**** * * *** **** * ***

* * * ** *** * * * ****** * == 1)
** ** ***** ** * *** **** * * ** * * ** * * * is a prefix of %s",a,b);

*** * * ** * * * * ** 0;
}
answered by (-127 points)
0 0
prog.c: In function 'main':
prog.c:8:11: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     int n=strlen(a);
           ^~~~~~
prog.c:8:11: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:8:11: note: include '<string.h>' or provide a declaration of 'strlen'
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.59
©2016-2025

Related questions

1 like 0 dislike
37 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42302 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 10.8k views
2 like 0 dislike
31 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42301 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 9.4k views
1 like 0 dislike
32 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42300 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 11k views
2 like 0 dislike
30 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42298 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 8.6k views
0 like 0 dislike
4 answers
[Exam] asked Jan 19, 2018 in Final Exam
ID: 43460 - Available when: 2018-01-20 09:00 - Due to: Unlimited
| 2.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users