프로그래밍/Pinary

문제 보기

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걸린 시간 : 30분

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class Pinary {
	private static String processOneCase(String line) {
		int limit = Integer.parseInt(line);
		
		int count = 0;
		String number;
		boolean accept = true;
		
		for(int i = 0; i < 90000000 * 2; i++) {
			accept = true;
			number = Integer.toBinaryString(i);
			if (number.charAt(0) == '0') {
				continue;
			}
			int size = number.length();
			for(int j = 0; j < size - 1; j++) {
				if (number.substring(j, j+2).matches("11")) {
					accept = false;
					break;
				}
			}
			
			if (accept) {
				count++;
			}
			
			if (count == limit) {
				return number;
			}
		}
		
		return null;
		
	}

	public static void main(String[] args) {
		try {
			BufferedReader br = new BufferedReader(new FileReader("test.txt"));
			String line = br.readLine();
			int testCase = Integer.parseInt(line);
			for(int i = 0; i < testCase; i++) {
				line = br.readLine();
				String result = processOneCase(line);
				System.out.println(result);
			}
			br.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

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(zeropage)코드레이스출동 연습

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프로그래밍