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  1. #include <iostream>
  2.  
  3. struct DirectionalForm{
  4.     double a;
  5.     double b;
  6. };
  7.  
  8. DirectionalForm getDirectionalForm(double x[], double y[]);
  9. bool isSameLine(DirectionalForm dirFor, double x, double y);
  10.  
  11. int main(){
  12.     int t;
  13.     std::cin>>t;
  14.  
  15.     for(int i=0; i<t; i++){
  16.         double x[3];
  17.         double y[3];
  18.  
  19.         for(int i=0; i<3; i++){
  20.             std::cin>>x[i]>>y[i];
  21.         }
  22.  
  23.         auto dirFor = getDirectionalForm(x,y);
  24.  
  25.         //std::cout<<"y = "<<dirFor.a<<"x + "<<dirFor.b<<std::endl;
  26.  
  27.         if(isSameLine(dirFor,x[2],y[2]))
  28.             std::cout<<"TAK"<<std::endl;
  29.         else
  30.             std::cout<<"NIE"<<std::endl;
  31.     }
  32. }
  33.  
  34. DirectionalForm getDirectionalForm(double x[], double y[]){
  35.     DirectionalForm toRet;
  36.     double divSub;
  37.  
  38.     if(y[0]-y[1] == 0 || x[0]-x[1] == 0) divSub = 0;
  39.     else divSub = (y[0]-y[1])/(x[0]-x[1]);
  40.     toRet.a = divSub;
  41.     toRet.b = y[0]-divSub*x[0];
  42.     return toRet;
  43. }
  44.  
  45. bool isSameLine(DirectionalForm dirFor, double x, double y){
  46.     return (dirFor.a*x + dirFor.b == y) ? true : false;
  47. }
Success #stdin #stdout 0s 4176KB
comments (?)
stdin
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5
1	2	3	4	5	6
1	3	1	4	1	-3
1	2	-3	4	3	9
2	-1	3	-1	-4	-1
0	0	0	0	0 	0
stdout
copy 
TAK
NIE
NIE
TAK
TAK
https://ideone.com/08Fy0m
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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