너T야? 나 T(story)야….

import java.util.Scanner;public class CountOfAlphabet { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.nextLine(); int[] arr =new int[26]; for (int i=0; i= 'a' && c

import java.util.Scanner;public class NumberOfAlphabet { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.nextLine(); int[] arr =new int[26]; for (int i=0; i= 'a' && c

import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.Stack;//Infix To Postfixpublic class PostOrder1 { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); Stack stack = new Stack(); String s = br.readLine(); for (..

import java.util.Scanner;import java.util.Stack;public class PostOrder2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int N = sc.nextInt(); String s = sc.next(); double[] values = new double[26]; for (int i = 0; i stack = new Stack(); // 후위 표기식 계산을 위한 스택 // 후위 표기식을 한 글자씩 처리 for (char c : s.toCharArray()) { ..

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.Stack;public class ODKS { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); //N갯수 입력 int N = Integer.parseInt(br.readLine()); int..

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.Stack;public class OKS { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); // 첫 번째 줄에서 N을 입력받음 int N = Integer.parseInt(br.readLine()); ..

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.Stack;public class Pipe { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String input = br.readLine(); Stack stack = new Stack(); int result = 0; for (int i = 0; i

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class ReverseWord2 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String input = br.readLine(); StringBuilder sb = new StringBuilder(); boolean inValid = false; StringBuilder..

아래처럼 풀었더니 1sec , 430 msec 가 떠서 런타임 오류가 발생하였다. 그래서 StringBuild로 풀기로 하였다.import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Hanoi { static int count = 0; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine());..

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Star1 { //2차원 배열 생성 private static char[][] pattern; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); int N = Integer.parseInt(br.readLine()..