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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

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

//



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

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



int main()

{
**** ** * ** * * ** * a1,a2,b1,b2,a,b,c;
* * * * * *** *** %f %f * * *** *** * * * * ** ***
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* ** * *** * 0;

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



int main()

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


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

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



int main(void){


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


** ** *** *** ** * * ** **** ** ** ** *
* ** ** * ** * **** ** * * *** ** **** * *
* ***** ******** ** ** ** * *** * * ** *** * *** ** ******** * **** *
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* * ** ** ** * * - bx) != 0){
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* ** ** * *** * *** = 1;
* **
****** ** **** * * *** **
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* ** * * * ** * = 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)
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Hidden content!
#include * * ** * *



int main(void){


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


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


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** **** *** ** * = (ay - *****
*** ** * * ** * ** = -m*ax + ay;
* ****** * * * ** = m;
**** *** ** * ** = 1.000000;
***** **
* ** * *** ** ********
** **** * *** * = 0.000000;
*** * ** * * * * = 1.000000;
*** ***** * = -ax;
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* *** * * ** *** = b;
* * * * * * * * * = c;


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


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



return 0;

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




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* 0 ;






answered by (-87 points)
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Hidden content!
* ** * ** *
* * * * * *

int main()

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

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



int main(void){


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


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

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

 }


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



return 0;

}
answered by (-122 points)
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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)
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