1 like 0 dislike
13.5k 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 | 13.5k 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:172.71.120.163
©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
| 13k 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
| 12k 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
| 14k 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
| 10.6k 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
| 2.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users