답안 #89339

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
89339	2018-12-11T22:47:51 Z	jasony123123	Poklon (COCI17_poklon7)	Java 11	컴파일 오류	0 ms	0 KB

poklon

import java.util.*;
import java.io.*;
import java.math.*;

public class ProblemSeven {
	static BufferedReader reader;
	static StringTokenizer token;
	
	static int N;
	static int[][] C;
	
	public static void main(String[] args) throws IOException{
		reader = new BufferedReader(new InputStreamReader(System.in));
		nextLn();
		N = nextInt();
		C = new int[N+1][2];
		for(int i = 1; i<=N; i++) {
			nextLn();
			C[i][0] = nextInt();
			C[i][1] = nextInt();
		}
		BigInteger ans = dfs(1);
		System.out.println(ans.toString(2));
	//	System.out.println(ans);
	}
	
	public static BigInteger dfs(int x) {
		if(x<0) {
			return new BigInteger(Integer.toString(-x));
		}
		BigInteger l = dfs(C[x][0]), r = dfs(C[x][1]);
		BigInteger ans;
		if(l.compareTo(r)>0)
			ans = l;
		else
			ans = r;
		return ans.multiply(new BigInteger("2"));
	}

	//nextLn moves the token to the nextLine
	public static void nextLn() throws IOException {
		token = new StringTokenizer(reader.readLine());
	}
	//nextInt returns the next available integer
	public static int nextInt() {
		return Integer.parseInt(token.nextToken());
	}
	//nextDouble returns the next available integer
	public static double nextDouble() {
		return Double.parseDouble(token.nextToken());
	}
	//next returns the next word separated by spaces
	public static String next() {
		return token.nextToken();
	}
}

Compilation message

poklon.java:5: error: class ProblemSeven is public, should be declared in a file named ProblemSeven.java
public class ProblemSeven {
       ^
1 error