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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 ***** ** * ** **** * * **********
* *** * * * * *** ** *
** * ** ** ** *** * **
***** ** *** * *****
** * * * **** * *** * *** * * * %.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 * **** ** ** * * ** **** ** **
* * *** ** * * * ** * *
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* *** * ***** * ** * ** *
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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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** * * **** = -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 * * *


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


* ** ** ** * * * - 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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* 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){
**** * * ****** * = (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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