Baekjoon Algorithm | Problem 14681: Quadrant Selection

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Source

https://www.acmicpc.net/problem/14681

Problem

Solve Baekjoon Online Judge problem 14681, Quadrant Selection.

Input

Follow the input format and constraints given in the original problem statement.

Output

Print the answer required by the problem.

Sample Input 1

12 5

Sample Output 1

1

Sample Input 2

9 -13

Sample Output 2

4

Algorithm Classification

  • Math
  • Implementation
  • Geometry

Solution

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {

        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
            final int x = Integer.parseInt(br.readLine());
            final int y = Integer.parseInt(br.readLine());

            int q = 0;
            if(x >= 0) {
                if(y >= 0) {
                    q = 1;
                } else {
                    q = 4;
                }
            } else {
                if(y >= 0) {
                    q = 2;
                } else {
                    q = 3;
                }
            }

            System.out.println(q);
        }
    }
}