1 like 0 dislike
8.7k 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 | 8.7k 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:172.70.100.75
©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
| 9k 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
| 7.8k 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
| 9.1k 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
| 7.1k 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