1 like 0 dislike
8.5k 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 | 8.5k 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:172.69.6.239
©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
| 8.8k 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
| 7.7k 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
| 8.9k 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
| 6.9k 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
| 1.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users