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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

reshown by | 8k views

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

//



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



int main()

{
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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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* * * * *** * *** ** 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;
** * *** * ** *** ** = 1;
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* ** * *** = 1;
* * * * *** ** = -ax;
* * *


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


* *** < 0)
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*** if (k < 0)
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* * * (i < 1){
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** ******* ** *** = b*g;
*** *** * ** = c*g;
* ***
* * if (k < 1){
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* ** * * * * * = a*g;
*** * ** * * ** **** = b*g;
* ** * ****** * *** = c*g;

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



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){
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*** **** * *** * * = -m*ax + ay;
**** * **** ***** = m;
* * * * * * * * * = 1.000000;
* *
*** * * * *** * *** *
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* * * * * *** * * = 1.000000;
** * * ** * * * **** = -ax;
***** * *


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


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


* ** * (i < 1){
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** * **** **** * = a*g;
** * * * * ** ** = b*g;
* ** * *** ** * = c*g;
* *
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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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** ** * * *** ** ** *** a , b * *








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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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