Submission #999033

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Source Code Expand

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class TEST{
	static void Main(){
		Sol mySol =new Sol();
		mySol.Solve();
	}
}

class Sol{
	public void Solve(){
		
		int[] X = new int[(1<<N)*2 -1];
		for(int i=0;i<(1<<N);i++){
			X[(1<<N)-1+i] = A[i];
		}
		for(int i=(1<<N)-2;i>=0;i--){
			int a = X[2*i+1];
			int b = X[2*i+2];
			X[i] = a == b ? a: (Math.Max(a,b) - Math.Min(a,b));
		}
		Console.WriteLine(X[0]);
	}
	int N;
	int[] A;
	public Sol(){
		N = ri();
		A = new int[1<<N];
		for(int i=0;i<(1<<N);i++) A[i] = ri();
	}

	static String rs(){return Console.ReadLine();}
	static int ri(){return int.Parse(Console.ReadLine());}
	static long rl(){return long.Parse(Console.ReadLine());}
	static double rd(){return double.Parse(Console.ReadLine());}
	static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);}
	static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));}
	static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));}
	static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));}
}

Submission Info

Judge Result