HackerRank Find the Point
Java
import java.util.*;public class FindPoint {
public static void main(String[] args) {
Scanner stdin = new Scanner(System.in);
int points = stdin.nextInt();
for(int i = 0; i < points; i++) {
int x = stdin.nextInt();
int y = stdin.nextInt();
int mx = stdin.nextInt();
int my = stdin.nextInt();
int sx = 2 * mx - x;
int sy = 2 * my - y;
System.out.println(sx + " " + sy);
}
stdin.close();
}
}
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