(3009) 네 번째 점

https://www.acmicpc.net/problem/3009

단계별로 풀어보기

10단계(기하 1: 직사각형과 삼각형) 3번째

 

 

 

#include <iostream>
using namespace std;

int main() {
  int x1, x2, x3, y1, y2, y3;
  
  cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
  
  if(x1==x2)  cout << x3;
  else if(x1==x3)  cout << x2;
  else  cout << x1;
  
  cout << " ";
  
  if(y1==y2)  cout << y3;
  else if(y1==y3)  cout << y2;
  else  cout << y1;
  
  return 0;
}