너T야? 나 T(story)야….

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class BinomialCoefficient { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] input = br.readLine().split(" "); int n = Integer.parseInt(input[0]); int k = Integer.parseInt(inpu..

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Factorial { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); int fact = 1; for (int i = 1; i

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class GreenTop { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); int result = (int) Math.pow(2, N); System.out.println(result); }}

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Bera { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); int result = N*(N-1); System.out.println(result); }}