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문제 코드 import java.io.BufferedReader; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] arr = br.readLine().split(" "); int cnt = 0; for (int i = 0; i < arr.length; i++) { if (!arr[i].isEmpty()) { cnt++; } } if (arr.length == 0) { System.out.println(0); ..

문제 코드 public class Main { public static void main(String[] args) throws Exception { System.out.print("문제의 정답"); } } 출처 https://www.acmicpc.net/problem/1237

문제 코드 import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception { Scanner scan = new Scanner(System.in); int n = scan.nextInt(); int[] arr = new int[n]; int stackTop = -1; String input; for (int i = 0; i < arr.length; i++) { input = scan.next(); if (input.equals("push")) { // 정수 X를 스택에 넣는 연산이다. stackTop++; arr[stackTop] = scan.nextInt(); } else if (inp..

문제 코드 import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception { int A = 0, B = 0; Scanner scan = new Scanner(System.in); A = scan.nextInt(); B = scan.nextInt(); System.out.println(A - B); } } 출처 https://www.acmicpc.net/problem/1001

문제 코드 public static void main(String[] args) throws Exception { int A = 0, B = 0; Scanner scan = new Scanner(System.in); A = scan.nextInt(); B = scan.nextInt(); System.out.println(A + B); } 출처 https://www.acmicpc.net/problem/1000

문제 코드 public class Main { public static void main(String[] args) throws Exception { System.out.print("Hello World!"); } } 출처 https://www.acmicpc.net/problem/2557