0 like 0 dislike
3.4k 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 | 3.4k views

49 Answers

0 like 0 dislike
Hidden content!
#include <stdio.h>

#include <stdlib.h>

#include <ctype.h>

#include <math.h>



int main()

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


* * * *********** **** *** ***** * (a-c!=0)
* * ** ********** * * ** *
* * * ** ****** * * ******** ***
* * ** * * * *** * **** * * *
*** * * ** * *** * **** ****
* *** * * * **** *** * ***
* ** *** ** * ***** ** *** (a-c==0)
** ** ** **** ** * ** * *
** ** ** * ******* * ***** ** *** * **
* ** * **** * *** ** * * ** * * ** * * * * ** **** *
*** ** * * ** **** * ***** * * * ***** *** ** * ** ***** **
* * ** * ** ** * ** * *** * **
* * * * *** ("%.6f ",e);
* * * * ** ** * ("%.6f ",g);
* ***** ** * * ("%.6f",f);






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

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
** ** * * * ** * ****






{
* ** ** ***** * ** *
* * ** ** * %f %f * ** ** * * ** * * *** * * *** ****
* ** ***** - x2 == 0)
* * ** **
** * * * * * *** = x1;
* ** ** ***** ** * ** **** * = 0;
* * ** * ******* * = -x1;
* ** * * * *** * ** ** * %f * * * ** **
* * ***** *
* *** if(x1 - x2 != 0,y1 != 0)
* ** *
*** * * * *** = (y1 - *** - x2);
* * * * * ** * * ** = y1 - (a * x1);
* * *** ***** *** = -((a * x1) + c) / y1;
* ***** *** * * * ***** %f ** ** *
* *
* * * 0;

}
answered by (-100 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
* * * *** * * **

int main (void)

{
* ** ***** ** *** * * x1,y1,x2,y2;


****** **** *** ** ** *** *** a,b,c;


*** *** *** * ** * ** * ** * ** %f ** * * *** ** ********* * ** ***
** * * * * **** * * ****** ****
* *** * ** * ** * *** * ** *** ***
* * * * * * * * ** * *** ** ** *




* * * * *** * * ** * ** * %6f %6f",a,b,1);
** ** **** **** **** 0;



}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
* ** **** ** * *
** * *** **

#include<math.h>



int main()

{
* ** ** ** ** ** * * x1,x2,y1,y2,m,a,c0;
* **** ** ** ** * *** * * * * * ** * *
* ** ***** * * * ** * * * ** * ** * **** *
* **** ** *** * * ** * ** * * ** ** * **
** *** * *** * * * * *** **** ** * * * ** **
* * * ** * ** * **** = (y1-y2)/(x1-x2);
** ** *** * * * *** ** ** *** * *
**** * * * * * * * * *** * * ***** * **
* * *** * ** * * * *** ** %f * * * ** * *** *

return 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
*** * * **** **


* ** * * * * ** **


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


* * * * ** ** *




* * ( * )

{
* ** * * *
* * %f %f **** * *** ** ** ** *** *
= d - *
* = c - *
* = f * b - a * e ;
* ***** * *** * ***
*
*
answered by (-276 points)
0 like 0 dislike
Hidden content!
** * *** * *
**** * **** * * * *

void rect(int ,int,int ,int,int *,int * );

int main(void)

{
*** ** * *** ** *** * ** * i, j, k, l;
* ****** * * a,b,c;
* ** **** * * *** **** ** * %4f %4f * * * * *** **** ** * * * ** ***
****** *** ** ***** ** * *** *
* *** * *** * * ***** * %6f *** * *


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

}
** * ** * * * * * rect(int x,int y,int z,int w,int *p1,int *p2)
* ***** * * *** ****** * * a,b,c;


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


* * **** ***** ****
answered by (-114 points)
0 like 0 dislike
Hidden content!
*** ** * * * *


** * *
**** * * * ** ***** *** * * * a, b, c;


** ** **** * **** **** ** * %f %f ** ** * * ***** *** * *** * * **


** * * * * * **** * = y2 - y1 / * * y2 - x2 * *
******* * *** * * ****** = x1 - / ** * y2 - x2 *
*** * * * ** *** ** * = - * * - *** *
***** ** ** ** * * ** * * * ** * ** * * a, *




}
answered by (-105 points)
0 like 0 dislike
Hidden content!
** *** * ** *** * * *
***** ** * **
*** * *** * *
** * ** *** ** *






* ** **

{


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


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



* ** dx = (x1 - *


* * * * dy = (y1 - **
* * * ** * *

* * ** * * m = dy /
* ** * *

** ** ** * h = y1 - *** *
* ** **

** * ** * ** a = b * h;

*** * *

* *** *** b =



** ** * **** c = b * h;


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




** * 0;

}
answered by (-157 points)
0 like 0 dislike
Hidden content!
* * **** *** * * *



int main(void)

{
** * * * x1,y1,x2,y2;
** * * *** ** ** a,b,c;
* ***** ** * ** ***** * **** ** *** * ** * * *
* *** * * *** * * *
** * ** ******** ** ** ** * * * * * * * * ** = y2 - y1;
** * * * * * ******** * * *** * ***** = x1 - x2;
** * ** ***** * * ** ****** ** ** ******** = -x1 * (y2-y1) + y1 * (x2-x1);
*** * ** * ***
* * ** * * ** %f %f",a,b,c);






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

}
answered by (-320 points)
0 like 0 dislike
Hidden content!
* ** * ** ******
* **** ********

int main(void)

{
** * *** ** * *** x1,y1,x2,y2;
** *** ** *** * * * a,b,c;
** * ** *** * ** * **** * * * * * **** * * * *** * *** *
* * * * *** **
* * *** ** ** **** *** * *** * * = y2 - y1;
** * * * * * * * *** * ** ** * * ***** * * = x1 - x2;
* * * ** * ** * **** **** * * ****** * = -x1 * (y2-y1) + y1 * (x2-x1);
*** * * ** ***
* * * ** *** * * %f %f",a,b,c);






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

}
answered by (-320 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.254.129
©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
| 1.9k 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
| 5.8k 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
| 4.5k 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
| 2k 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