0 like 0 dislike
6.4k views
直線方程式的通式為 ax+by+c=0 ,請設計一程式,由使用者輸入平面上兩點,程式會計算出直線方程式後輸出a, b, c。

輸入說明:輸入會包含四個浮點數,倆倆之間會用一個空白隔開,四個浮點數依序代表第一個點的x座標、第一個點的y座標、地按個點的x座標、第二個點的y座標。

輸出說明:請依序輸出 a, b, c 三個常數,每個數都需輸出到小數點後六位。請確保a, b, c 間的最大公因數為1。

輸入範例:

1.0 1.0 1.0 2.0

輸出範例:

1.000000 0.000000 -1.000000
[Exercise] Coding (C) - asked in 2016-1 程式設計(一)AC by (18k points)
ID: 18070 - Available when: Unlimited - Due to: Unlimited

reshown by | 6.4k views

49 Answers

0 like 0 dislike
Hidden content!
// ** * ** *** by HoMingJui on 2016/11/3.

//



#include * ** ** ** * ****

#include *** * *

#include *** ** * ** ** *

#include * * * * * *





int main(){
** *** * * ** ******** * * x[2],y[2],a,b,c;
* *** *** ** ** * * * * %f %f ** ** * * **** * * ***** *** ** * ** * *
* **** * * * ** ** ** * * * * * * *
*** ** * ***** ** ** * * * * * * * *
******* * ** * * *** * ** ** **
** **** * * * * * ** **** * * ** * %.6f ** ** * ** * *
* ** **** ** ** * * 0;

}
answered by (-126 points)
0 like 0 dislike
Hidden content!
* * * ** * *



int main()

{
** * * * * ** ** **** a1,a2,b1,b2,a,b,c;
* * * **** ** ** ** * %f %f ****** * ** *** * ** *** ****** * *
***** ** ** * * * * *
** * * * * * * **
* ** * *** * * *** * *
** ****** ** * * * ** *** %.6f %.6f",a,b,c);


**** * * * * * * * 0;

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
* * ** * ** *



int main()

{
**** * * ** * * a1,a2,b1,b2,a,b,c;
****** ***** **** ** *** **** * %f %f *** **** ** ** *** ** * ***
** * * * * * * *****
* ** ** *** * * * ***
* * * * ** * ** * *
***** * * ** * **
** * * * * ** *** * ** ** **** %.6f %.6f",a,b,c);


** * ** * *** ** 0;

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
#include **** * **



int main(void){


* * * * **** *** ax , ay ,bx ,by ,a ,b * *


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


** * * ** * ***** * - bx) != 0){
* ****** * **** ** = (ay - * *** *
* * * * * * * * = -m*ax + ay;
* ** * * * *** = m;
** * * ******* = 1;
*
* ***** * *** ***** **
** *** * * ** ** = 0;
****** ** ** * **** * = 1;
** * * * ** ** = -ax;
*****


******* *** * ** = a;
* * * ** * **** *** = b;
* ** ** * ** = c;


* ** ** < 0)
*** * ***** * *** ** = -i;
* * * * if (k < 0)
* * *** * ** * **** = -k;


* * ** (i < 1){
** **** * **** ** * = 1/i;
**** * * * * * = a*g;
* ** * * *** ***** = b*g;
** * *** **** *** *** = c*g;
*** **
** * if (k < 1){
* * ** * * * = 1/k;
* * ** * **** = a*g;
** * *** * * * = b*g;
* *** ** * **** = c*g;

 }
* * ** * * *
** ** *** * * * *
* ** ***** **** ****** *



return 0;

}
answered by (-122 points)
0 like 0 dislike
Hidden content!
#include **** ** * **



int main(void){


** * * *** * * * ax , ay ,bx ,by ,a ,b *** *


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


*** **** **** ***** - bx) != 0){
****** * * ** ** * * = (ay - * * **
* ** ** * = -m*ax + ay;
** * * * = m;
*** *** ** * * *** * * = 1.000000;
* ***
** ** *** ** * *
* ** * * ** * *** = 0.000000;
* ** *** *** ** = 1.000000;
** * * * *** * = -ax;
** ** * *


** ** ** ** ** = a;
* * *** *** * ** = b;
* * **** * ****** = c;


***** * < 0)
*** * * ** *********** = -i;
* ** * if (k < 0)
** ** ******* * * * * *** = -k;


* * * (i < 1){
*** * * * *** ** *** = 1/i;
** * ** * ** = a*g;
* * * * ** = b*g;
** **** * *** ***** = c*g;
* **
** * * if (k < 1){
* * ***** * = 1/k;
* * * * ** *** = a*g;
** * ** ** = b*g;
***** *** ** = c*g;
* *
* ** **** ** * * *
* *** ** * ** *
* *** ** ** * *** *****



return 0;

}
answered by (-122 points)
0 like 0 dislike
Hidden content!
** **** *** ******
* * * ** ** **
** * *
i * * * *
** a , b , c , * * * **** * **
* *** ; i * ; * *
* * *** * * , * * * );




* * **
* *** ** ** * =
**** * * * * = - * *
*


** ***** ** ** * * ** *
*
** *** *** *
* = ** *** ;
= ;

* * * * ** * **** * a , b * **








* 0 ;






answered by (-87 points)
0 like 0 dislike
Hidden content!
**** * ** * ***** *
***** ** * **** *

int main()

{
* * **** * ***** ** **** a,b,c,d,m,x,y;
* **** ** ** * ** * **** ** %f %f ** * *** **** ** ** ** ** *****
** **** ** ** * *** *** * **
** * *** * *** * * ****

}
answered by (-103 points)
0 like 0 dislike
Hidden content!
#include * * *** *



int main(void){


** * ** *** *** * * *** ** * ax , ay ,bx ,by ,a ,b ,k,m,c;


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


*** * * * * * * - bx) != 0){
* ** ** ** * **** = (ay - * *** *
*** ** ** **** * = -m*ax + ay;
** ** **** * *** = m;
** * * * ** ** = 1.000000;

 }
**** ***** *** * * * ** ****
* * * * * **** = 0.000000;
* *** **** ** = 1.000000;
*** * * * * * = -ax;

 }


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



return 0;

}
answered by (-122 points)
0 like 0 dislike
Hidden content!
#include ** **** * ***



int main(void){


* ***** * ** ** ax , ay ,bx ,by ,a ,b ,k,m,c;


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


*** ** * * * * * * *** - bx) != 0){
*** ** *** **** * * = (ay - ***** **
* ** ***** * ** ** = m*ax + ay;
** * * * ** ******* = m;
*** * * * **** = 1.000000;

 }
** * * * *** ** **
* *** *** **** * *** = 0.000000;
** *** ** * * * = 1.000000;
** * ** ** * **** = -ax;

 }


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



return 0;

}
answered by (-122 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.50.51
©2016-2025

Related questions

0 like 0 dislike
16 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18075 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 3.3k views
0 like 0 dislike
86 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18071 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 11.4k views
0 like 0 dislike
62 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18067 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 9k views
0 like 0 dislike
21 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18066 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 3.9k views
0 like 0 dislike
0 answers
[Resource] asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18085 - Available when: Unlimited - Due to: Unlimited
| 10 views
12,783 questions
183,442 answers
172,219 comments
4,824 users