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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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// ** * * ** by HoMingJui on 2016/11/3.

//



#include *******

#include * * ** *

#include *** ** *

#include ** *** ****





int main(){
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** ** ** ** * ** ** *** ** * * * %.6f ** *
** ***** * *** * * ** ** 0;

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



int main()

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


* ** * * 0;

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



int main()

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


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


* **** * * ** - 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)
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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)
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Hidden content!
* * * ***** * ***** *
* *** * * ** *** *
* *****
** i ******
* * * a , b , c , ***** *** *** *
* ; i ** ** * ; **
* *** ** * * *** , * *** );




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

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








** ** 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;


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


** * ** * ***** * - bx) != 0){
** * **** * = (ay - *
* * *** **** = -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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